Lassen Volcanic

https://www.nps.gov/lavo https://en.wikipedia.org/wiki/Lassen_Volcanic_National_Park Lassen Volcanic National Park is in northern California. It's rich in hydrothermal sites like Bumpass Hell, with its acres of bubbling mud pots. The summit of Lassen Peak Volcano offers views over the surrounding wilderness. Nearby, the Devastated Area is littered with lava rocks from its last eruption. A network of trails through forest and around several lakes connects with the Pacific Crest Trail in the north. Lassen Volcanic National Park is home to steaming fumaroles, meadows freckled with wildflowers, clear mountain lakes, and numerous volcanoes. Jagged peaks tell the story of its eruptive past while hot water continues to shape the land. From Interstate 5 (Redding), take Hwy 44 - 48 miles east to the junction of Hwy 89. Follow Hwy 89 south 1 mile to the north entrance of the park. From Interstate 5 (Red Bluff) take Hwy 36 E - 51 miles east to the junction of Hwy 89. Follow Hwy 89 north 6 miles to south entrance of the park. Kohm Yah-mah-nee Visitor Center This year-round visitor center is located one mile from the Southwest Entrance. The visitor center offers an information desk, exhibit hall, auditorium, amphitheater, park store, dining area with fireplace, patio, and a gift shop and cafe. Free Wi-Fi is available inside. From Red Bluff: Follow Hwy 36 East for 51 miles to the junction of Hwy 89. Follow Hwy 89 north 6 miles to the southwest entrance station and the Kohm Yah-mah-nee Visitor Center. Loomis Museum The historic museum is located one mile from the northwest entrance of the park near Manzanita Lake. The museum is only open during the summer months. Visit for information, to view exhibits and the park film, shop at the park store, or participate in a ranger-led program (offered primarily outside in the adjacent Loomis Plaza). From the museum you can pick up the trail around Manzanita Lake or cross the highway to access the self-guided, interpretive Lily Pond Nature Trail. From Redding, California follow Highway 44 east 50 miles. Turn south on Highway 89 and continue one mile to the park's northwest entrance. From Reno, Nevada follow Highway 395 north to Highway 44. Follow Highway 44 miles west 180 miles. Turn south on Highway 89 and continue one mile to the park's northwest entrance. Butte Lake Campground Butte Lake Campground is located in the NE corner of Lassen Volcanic National Park. The campground is a 45-minute drive from the Northwest Entrance and Manzanita Lake Area and is accessed via the 6-mile-long Butte Lake Road south of highway 44. This remote campground offers few amenities, but numerous recreation opportunities. Enjoy a hike up Cinder Cone or a paddle along Butte Lake's lava rock shores. Reservations are available for most sites and required for group sites and the stock corral. Campsite 22.00 Rate per campsite. Campsite (water off) 15.00 Single campsite when water is not available (early and late season). Group Campsite 62.00 Campsite for a minimum of 10 and a maximum of 25 people and up to six licensed vehicles or one bus/RV. Group (water off) 35.00 Group campsite when water is unavailable (early and late season). Stock corral 37.00 The Butte Lake stock corral is located north of the campground via a short access road and is available by reservation only. Butte Lake boat launch A sandy boat launch area on the edge of a conifer-lined lake. The campground is a short walk from the Butte Lake boat launch. Campground Map A map of a campground showing two loops. Butte Lake Campground contains two loops located near Butte Lake. Restroom at Butte Lake Campground A brown building with restrooms, a utility sink, and a water spigot out front. Three campground restrooms offer a water fountain and spigot and utility sink. Juniper Lake Campground The Juniper Lake Campground is located on the east shore of Juniper Lake via a 13-mile paved/gravel road. All single campsites are first-come, first-served only. Reservations are required for the two group sites and one stock corral. Drinking water is not available. Campsite 12.00 First-come, first-served campsite. Each campsite is equipped with a picnic table, fire grate, bearproof box, and parking area. Electric and water hookups are not available. Vehicles must stay on paved/graveled areas. No water is available in the campground. Group Campsite 32.00 Tent camping only. Group site capacity is limited to a minimum of 10, and a maximum of 15 people, and up to six licensed vehicles. Each group campsite is equipped with three picnic tables, three fire grates, three metal food lockers, and a parking area. No water is available in the campground. Stock Corral 30.00 Two metal panel corrals. Only one stock party is assigned to the site at one time. Group site capacity is limited to a maximum of 10 people, 8 animals, and 4 licensed vehicles, which include trailers. Stock parties must camp at the corral campsite. Hitch rails are not provided. Portable corrals are not allowed except within designated corral enclosure areas. Juniper Lake Group Site Trash receptacles and picnic tables amid conifer trees on the edge of a mountain lake. Two group sites are located off a spur of the campground road. Meadow campsite A campsite amid conifer trees adjacent to a grassy area. Campsites on southern side of the campground road have meadow views. Campground Map A map of the campground indicating sites branching off a single road. Juniper Lake Campground is located adjacent to Juniper Lake. Lakeside campsite A picnic table, fire ring, and metal bear box at a campsite amid conifer trees on a lakeshore. Many sites are adjacent to Juniper Lake Campsite A picnic table in conifer trees near the grassy shore of a mountain lake. Juniper Lake Campground is on the eastern shore of Juniper Lake. Evening at Juniper Lake Campground A photo of a kayak and row boat on the short of a moonlit, mountain lake. Campers can launch boats from Juniper Lake Campground. Lost Creek Group Campground Lost Creek Group Campground contains only group campsites. All sites are reservation-only. The campground is located five miles south of Manzanita Lake on the park highway. The campground offers easy access to Manzanita Lake, Devastated, and Summit Lake Areas. Group campsite 62.00 Group campsite capacity is limited to a minimum of 10, a maximum of 25 people, and up to 6 vehicles or one bus/RV. Each group campsite is equipped with three picnic tables, three fire grates, three metal food lockers, and a parking area. Lost Creek campsite A large picnic tent next to two picnic tables with camping chairs and three brown metal bear boxes. Each campsite includes three food lockers, picnic tables, and fire grates. Lost Creek Group Campground Map A map of an oval loop with 8 campsites. Lost Creek Campground contains only group sites. Manzanita Lake Campground Manzanita Lake Campground is located one mile east of the Manzanita Lake Entrance and is the largest campground in the park. This popular campground is ideal for families, RVs, and trailers. Located adjacent to Manzanita Lake, campers can enjoy swimming, fishing, kayaking, and hiking. This campground is open the longest except for the year-round Southwest Walk-in Campground. The campground includes rustic camping cabins and group campsites, both of which are available by reservation only. Campsite 26.00 Single campsite for a maximum of 3 tents, 6 people, and 2 vehicles (including RVs). Campsite (water off) 15.00 Single campsite when water is not available. Limited to a maximum of 3 tents, 6 people, and 2 vehicles (including RVs). Group campsite 72.00 Group site joining two or more adjacent campsites (B20-22, B24-27, B28-30, B31-32, B33-34). Limited to 10-25 people and 6 vehicles (including RVs). One-room camping cabin 76.00 One-room rustic camping cabin available by reservation only. All cabins include bed(s), propane heater, battery-powered lantern, bear proof food storage box, fire ring, and picnic table. Central restrooms and showers are located nearby. Both shower areas have an ADA accessible stall with bench seat and hand rails. ADA accessible cabins with ramps are also available. The mattress provided are 3 inches and firm so we encourage you to bring additional bedding; sleeping bags, comforters and blankets. Two-room camping cabin 101.00 Two-room rustic camping cabin available by reservation only. All cabins include bed(s), propane heater, battery-powered lantern, bear proof food storage box, fire ring, and picnic table. Central restrooms and showers are located nearby. Both shower areas have an ADA accessible stall with bench seat and hand rails. ADA accessible cabins with ramps are also available. The mattress provided are 3 inches and firm so we encourage you to bring additional bedding; sleeping bags, comforters and blankets. Bunkhouse camping cabin 95.00 Bunkhouse rustic camping cabin available by reservation only. All cabins include bed(s), propane heater, battery-powered lantern, bear proof food storage box, fire ring, and picnic table. Central restrooms and showers are located nearby. Both shower areas have an ADA accessible stall with bench seat and hand rails. ADA accessible cabins with ramps are also available. The mattress provided are 3 inches and firm so we encourage you to bring additional bedding; sleeping bags, comforters and blankets. Camping cabin (accessible) A woman sits in a wheelchair and a man stands at a picnic table backed by a small, wooden cabin. Four accessible camping cabins offer a ramp and wheelchair-accessible picnic table. Camping cabin The rear of a wooden cabin in a forest with a partial view of a lake. The camping cabin loop is adjacent to Manzanita Lake. Section of E-Loop A paved road lined by campsites containing trailers and vehicles. A limited number of campsites can accommodate RVs and trailers. Group campsite A large group of people pose for a photo at a campsite. Group campsites combine two or three adjacent single sites. Campground Map A map of a campground showing five loops connected by a road to the right. Manzanita Lake Campground contains five loops. Southwest Walk-In Campground The Southwest Walk-in Campground is located on the east side of the Kohm Yah-mah-nee Visitor Center parking area. A short walk along a paved walkway provides easy access to each site. When snow is on the ground (approximately Nov-May), the location of the Southwest Campground changes to an over-the-snow area south of the Kohm Yah-mah-nee Visitor Center parking area. Winter camping registration is located at the fee booth located south of the parking area. Campsite 16.00 Single walk-in campsite limited to a maximum of 3 tents, 6 people, and 2 vehicles (including RVs). Campsite (water off) 10.00 Single campsite when water is not available. Limited 3 tents, 6 people, and 2 vehicles (including RVs). Camping in vehicle 16.00 Camping in a self-contained vehicle in the adjacent parking area only. Please park between islands. Camping in vehicle (no water) 10.00 Camping in a self-contained vehicle in the adjacent parking area only when water is not available. Please park between islands. Campsite A green tent, two blue chairs, and a brown bear box All campsites are accessed by a short walk from the parking area. Restroom and Summer/Fall Registration Two people walk along a paved pathway toward a small brown building. A registration area and restroom are available in the summer and fall seasons. Kohm Yah-mah-nee Visitor Center Parking Area A parking area with vehicles parked on the edges and a building at the far end. The campground is adjacent to the Kohm Yah-mah-nee Visitor Center parking area. Campground Map A map of the campground indicating sites of a walkway to the right of a large parking area. Southwest Walk-in Campground is adjacent to the Kohm Yah-mah-nee Visitor Center. Winter Map A map of a parking area, campground, and visitor center indicating closures and routes for snow. Oversnow tent camping is located south of the parking area in the winter months, approximately November through May. Summit Lake North Campground Summit Lake North Campground is located on the north side of Summit Lake at about the middle point of the 30-mile park highway. The campground includes loop A and B. Additional campsites are located in three loops on the south side of the lake in Summit Lake South Campground. A picnic area is located on the shore and features a swimming area, picnic tables, and day use parking. Campsite 24.00 Single campsite for a maximum of 3 tents, 6 people, and 2 vehicles (including RVs). Horse corral 37.00 The Summit Lake horse corral is located across the highway and is available by reservation only. Summit Lake North Campsite Two tents, two chairs, and a picnic table at a campsite in trees with a restroom to the right. A campsite at Summit Lake North Campground. Summit Lake North picnic area People sit and stand on a grassy shore of a mountain lake. Swimming is popular on the north shore of Summit Lake. North Summit Lake Campground Map A map of a campground with two side-by-side loops A and B and a day use area on the shore of lake. Summit Lake North includes a picnic area on the lakeshore. Summit Lake South Campground Summit Lake South Campground is located on the south side of Summit Lake at about the middle point of the 30-mile park highway. The campground contains loops C, D, and E (tents only). Additional campsites are located in two loops on the north side of the lake in Summit Lake North Campground. Campsite 22.00 Single campsite for a maximum of 3 tents, 6 people, and 2 vehicles (including RVs). Campsite (water off) 15.00 Single campsite when water is unavailable. Limited to 3 tents, 6 people, and 2 vehicles (including RVs). Campsite A tree-lined campsite with a tent and metal bear box . Some campsites backup to meadow areas. South Summit Lake Campground Map A map of a campground with three vertically stacked loops numbered C through E. Summit Lake South Campground Map Summit Lake from the south shore A blue lake fronted by green and yellow meadow, lined by conifers, and backed by a round, volcanic p A view of Summit Lake from Summit Lake South Campground. Warner Valley Campground The campground is located one mile north of Warner Valley Ranger Station via a gravel road and 17 miles north of Chester. Not recommended for trailers. Numerous trailheads are located nearby. Campsite 21.00 Single campsite for a maximum of 3 tents, 6 people, and 2 vehicles (including RVs). Warner Valley Campground Map A map showing a campground along a spur road with 18 sites. This small campground is perched on at the base of Flatiron Ridge. Winter at Manzanita Lake A frozen lake below snow-covered trees and peak With over 30 feet of snowfall annually, Lassen provides numerous opportunities for winter recreation. Hat Creek Golden grasses edge a pond reflecting a snow-dusted peak Lassen Volcanic's rugged volcanic landscape is softened by numerous meadows, lakes, and creeks. Bumpass Hell A boardwalk passes through a colorful, steaming hydrothermal basin. A 3-mile round-trip trail leads to Bumpass Hell, the largest of the park's hydrothermal areas. Brokeoff Panorama Two hikers sit on a mountain top with a view of multiple peaks, dotted with patches of snow Over 150 miles of trails let you choose your adventure. Deep Blue A volcanic peak rises above a tree-lined, deep blue lake. Lassen Peak stands out boldly between the bright blue sky and the sapphire hue of Lake Helen. A Fisherman's Paradise A fisherman casts a line from a boat below a snow-dotted volcanic peak. Manzanita Lake offers spectacular catch-and-release fishing in the shadow of volcanoes. Lassen Peak Eruption An ash cloud rises above a volcano with an early 19th century vehicle at the forefront. A large, explosive eruption of Lassen Peak brought national attention and set the stage for the establishment of Lassen Peak. California Tortoiseshell Clouds of California Tortoiseshells sometimes appear in the park during populations burst or mass migrations. An orange and black California Groundcone Curious about the California groundcone in Oregon and California? Explore its natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. Purple groundcone standing next to similar looking Douglas-fir cone. 2010 NPS Environmental Achievement Awards Recipients of the 2010 NPS Environmental Achievement Awards Carpenter Ant Curious about carpenter ants? Explore their natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. close up photo of carpenter ant NPS Geodiversity Atlas—Lassen Volcanic National Park, California Each park-specific page in the NPS Geodiversity Atlas provides basic information on the significant geologic features and processes occurring in the park. Links to products from Baseline Geologic and Soil Resources Inventories provide access to maps and reports. [Site Under Development] geothermal landscape Managing Bull Thistle in Disturbed Areas of Lassen Volcanic National Park Steve Buckley of the California Exotic Plant Management Team shares a story of success in invasive species management. Bull thistle removal in Lassen Volcanic NP. A Plant to Call Our Own Lassen Paintbrush (Castilleja lassenesis) may be one of two endemic plant species found almost exclusively in Lassen Volcanic National Park. Magenta paintbrush-like flowers in green grass Forecasting Water from Snow Snow water equivalent forecasts provide valuable information for recreation, agriculture, flood management, and hydroelectric power generation. How is snowpack measured and how is that information used? A man stand on top of a snowplow flanked by 15+-foot-height cut snow foot Wild and Scenic Rivers Two Wild and Scenic Rivers flow near Lassen Volcanic National Park including one of the original designations made 50 years ago. A narrow sliver of blue river cuts through a steep and wide, tree-lined river basin Crescent Crater Military Plane Crash Friends and family honor the eight servicemen who lost their lives in a military plane crash on Crescent Crater in Lassen Volcanic National Park in 1951. Black and white photograph of airplane wreckage on hillside Aviation Support for “Reach the Peak” Project The fire management staff at Lassen Volcanic National Park organized a successful, accident-free, aviation operation to support the restoration and rehabilitation of the Lassen Peak Trail. The park’s Branch of Fire and Aviation orchestrated an airlift operation including more than 700 sling loads over a period of eight days. The aviation operation transported more than 2.1 million pounds of rock from the peak parking lot to five different locations on the historic trail. Bulldozer filling bucket with large rocks 2015 Freeman Tilden Award Recipients Meet the recipients of the 2015 Freeman Tilden Awards, the highest National Park Service honor for interpretation, and learn more about their exciting programs. Ernie Price Pileated Woodpecker Curious about the pileated woodpecker in Oregon and California? Explore its natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. Face and front of a woodpecker, with black body, red crest, and small blue berry in its beak. Pikas in Peril The National Park Service stewards pika populations in more than a dozen parks and seeks to understand the vulnerability of pikas and other mountain species to climate change. Pikas in Peril, funded in 2010, was a collaborative research program directed by scientists from the National Park Service, Oregon State University, University of Idaho, and University of Colorado-Boulder. Profile of a pika on rough, dark red lava rock. © Michael Durham Wildland Fire in Douglas Fir: Western United States Douglas fir is widely distributed throughout the western United States, as well as southern British Columbia and northern Mexico. Douglas fir is able to survive without fire, its abundantly-produced seeds are lightweight and winged, allowing the wind to carry them to new locations where seedlings can be established. Close-up of Douglas fir bark and needles. Rough-legged Hawk Curious about our wintering visitor to Oregon and California, the rough-legged hawk? Explore its natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. Large hawk in flight with dark and light coloring underneath. 2003 NPS Environmental Achievement Awards Recipients of the 2003 Environmental Achievement Awards 2007 NPS Environmental Achievement Awards Recipients of the 2007 NPS Environmental Achievement Awards Tracking One of California's Rarest Mammals In the winter of 2018, researchers captured one male and two female Sierra Nevada red foxes in and around Lassen Volcanic National Park. These three foxes are the first of the subspecies captured in over a decade and offer hope of better understanding this state-listed threatened species. A man crouches behind a woman kneeling who is releasing a red fox into a snow-covered forest. Vascular plant hyperdiversity in high-elevation riparian communities of National Park Service units in the Klamath Network Monitoring data provide evidence of high vascular plant diversity in riparian environments. This surprising pattern indicates a high conservation significance of these park environments. Stream and forest scene at Lassen Volcanic National Park (Credit: NPS Photo) Park Air Profiles - Lassen Volcanic National Park Air quality profile for Lassen Volcanic National Park. Gives park-specific information about air quality and air pollution impacts for Lassen Volcanic NP as well as the studies and monitoring conducted for Lassen Volcanic NP. Trail in Lassen Volcanic National Park Short-eared Owl Curious about the short-eared owl in Oregon and California? Explore its natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. Owl with short feather tufts above eyes, buffy, streaked breast, and brownish body. Giant Water Bug Curious about giant water bugs in Oregon and California? Explore their natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network.” Brown, flattened but with many whitish, columnar eggs attached to its back. Wildland Fire in Ponderosa Pine: Western United States This forest community generally exists in areas with annual rainfall of 25 inches or less. Extensive pure stands of this forest type are found in the southwestern U.S., central Washington and Oregon, southern Idaho and the Black Hills of South Dakota. Recently burned ponderosa pine forest. Volcanic Legacy Scenic Byway One of only 42 All American Roads in the Nation, the 500-mile route connects Lassen Volcanic and Crater Lake National Parks. The volcanic activity of the Cascade Mountain Range has created unique geological formations that can only be seen in this part of America. A white car on a mountain road with a large mountain in the background Ladybug Curious about ladybugs in southern Oregon and northern California? Explore their natural history in this edition of our monthly "Featured Creature," brought to you by the Klamath Inventory and Monitoring Network. Cluster of small orange ladybug beetles with black spots on their backs, on vegetation. Checking Lassen's Vital Signs In 2010, the Klamath Inventory and Monitoring Network—a small team of NPS scientists—began monitoring natural resources, called "vital signs," in Lassen Volcanic and nearby parks. Vital signs indicate park health and serve as red flags if conditions deteriorate. Results from monitoring these vital signs support park managers’ efforts to make science-based management decisions. Learn about the NPS Inventory and Monitoring Division and its work in Lassen Volcanic National Park. Pink flowers border a mountain lake surrounded by forest, with mountains in the background. Sandhill Crane Curious about the sandhill crane in southern Oregon and northern California? Explore its natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. Two large grayish-brown cranes stand together with wings outspread Anna's Hummingbird Curious about the Anna's hummingbird in southern Oregon and northern California? Explore its natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. Small, green hummingbird with narrow bill and iridescent rose-colored feathers on throat and crown. Volunteer Story: The Renaissance Couple Greg and Annette Brahms have donated nearly 6,000 volunteer hours at Lassen Volcanic National Park in more than a decade of service. What fuels their love for Lassen? A man and woman stand together on a hiking a trail on rocky hillside backed by a mountain peak.. Parks, pikas, and physiological stress: Implications for long-term monitoring of an NPS climate-sensitive sentinel species Baseline values of physiological stress can be incorporated into monitoring plans for pikas, providing park managers with additional information related to the vulnerability of this climate-sensitive model species that occurs within a large number of western parks. American pika (Copyright Dick Orleans) Orange Sulphur Curious about the orange sulphur butterfly in southern Oregon and northern California? Explore its natural history in this edition of our monthly "Featured Creature," brought to you by the Klamath Inventory and Monitoring Network. Yellowish-orange butterfly with dark band along the wing edges perches with wings open. Celebrating soils across the National Park System First in a series of three "In Focus" articles that share insights into the near-universal and far-reaching effects of soils on the ecology, management, and enjoyment of our national parks. Fossil soils at Cabrillo National Monument reveal marine deposits National Park Service Commemoration of the 19th Amendment In commemoration of the 100th anniversary of the passing of the 19th Amendment the National Park Service has developed a number of special programs. This includes online content, exhibits, and special events. The National Park Service’s Cultural Resources Geographic Information Systems (CRGIS) announces the release of a story map that highlights some of these programs and provides information for the public to locate and participate. Opening slide of the 19th Amendment NPS Commemoration Story Map Ruffed Grouse Curious about the ruffed grouse in southern Oregon and northern California? Explore its natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. Grouse with reddish brown and white mottling and streaking, a head crest and a dark tail band. Making Sense of Monitoring Data: Whitebark Pine Conditions in the Southern Cascades Klamath Network botanist, Sean Smith, has been monitoring whitebark pine conditions in two network parks since 2012. Jenell Jackson, the graduate student he worked with early on, recently coauthored a paper with Smith and other scientists in the journal <em>Forests</em> sharing what they’ve learned about whitebark pine. Their study aims to support park managers grappling with how best to protect this increasingly threatened tree in the southern Cascades. Close-up of tree bark covered in orange blisters. Celebrating 50 Years of National Trails Lassen Volcanic National Park all three types of National Trails and seven National Trails are located in or adjacent to the park. A group of seven hikers stands on the summit of a cinder cone volcano Series: Geologic Time Periods in the Cenozoic Era The Cenozoic Era (66 million years ago [MYA] through today) is the "Age of Mammals." North America’s characteristic landscapes began to develop during the Cenozoic. Birds and mammals rose in prominence after the extinction of giant reptiles. Common Cenozoic fossils include cat-like carnivores and early horses, as well as ice age woolly mammoths. fossils on display at a visitor center Series: NPS Environmental Achievement Awards Since 2002, the National Park Service (NPS) has awarded Environmental Achievement (EA) Awards to recognize staff and partners in the area of environmental preservation, protection and stewardship. A vehicle charges at an Electric Vehicle charging station at Thomas Edison National Historical Park Series: Park Air Profiles Clean air matters for national parks around the country. Photo of clouds above the Grand Canyon, AZ Whitebark Pine - Featured Creature Curious about the whitebark pine? Explore its natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. Gray and white bird with black wings digs into a pine cone on the end of a pine branch. Quaternary Period—2.58 MYA to Today Massive ice sheets advanced and retreated across North America during much of the Quaternary, carving landscapes in many parks. Bering Land Bridge National Preserve contains geologic evidence of lower sea level during glacial periods, facilitating the prehistoric peopling of the Americas. The youngest rocks in the NPS include the lava of Hawaii Volcanoes National Park and the travertine at Yellowstone National Park, which can be just a few hours old. fossil bone bed and murals of mammoths Cenozoic Era The Cenozoic Era (66 million years ago [MYA] through today) is the "Age of Mammals." North America’s characteristic landscapes began to develop during the Cenozoic. Birds and mammals rose in prominence after the extinction of giant reptiles. Common Cenozoic fossils include cat-like carnivores and early horses, as well as ice age woolly mammoths. fossils on display in a visitor center Wildland Fire in Lodgepole Pine The bark of lodgepoles is thin, which does not protect the trunks from scorching by fire. They die easily when a fire passes through. However, the serotinous cones give lodgepole pine a special advantage for spreading seeds for the next generation. Close-up of the needles of a lodgepole pine. Douglas's Squirrel Curious about the Douglas's squirrel in southern Oregon and northern California? Explore its natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. Medium-sized squirrel with tawny belly, gray back, whitish eye ring, and tufts on ears, in a tree. Scientist Profile: Alice Chung-MacCoubrey, Biologist and I&M Program Manager Meet Alice Chung-MacCoubrey, ecologist and program manager for the Klamath Inventory & Monitoring Network! Discover how Alice followed her passion for wildlife and the outdoors to the National Park Service Inventory & Monitoring Program, and learn about her work studying bats. Biologist holds bat with gloved hands. Sculpins Curious about sculpins in southern Oregon and northern California? Explore their natural history in this edition of our monthly "Featured Creature," brought to you by the Klamath Inventory and Monitoring Network. Fish with large head, large pectoral fins, and mottled, brown, orange, and pale green colors. Plan Like a Park Ranger - Lassen Volcanic Top 10 Tips Plan Like A Park Ranger - Top 10 Tips for Visiting Lassen Volcanic A person in an orange boat fishes on a lake below a snow-capped volcanic peak. Vaux's Swift Curious about the Vaux's swift in southern Oregon and northern California? Explore its natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. A small, pale brown, cigar-shaped bird with narrow, pointed wings, in flight. Coast Douglas-fir Curious about Douglas-fir in southern Oregon and northern California? Explore its natural history in this edition of our monthly "Featured Creature," brought to you by the Klamath Inventory and Monitoring Network. Six people in front of a very large Douglas-fir at Oregon Caves National Monument and Preserve. American Black Bear Curious about the American black bear in southern Oregon and northern California? Explore its natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. Black-colored black bear with a dandelion in its mouth. Volcanic Processes—Lahars Lahars are volcanic mudflows and are among the most destructive of volcanic phenomena. Lahars present significant geohazards since they can travel great distances down river valleys and impact population centers away from the immediate area of a volcano. wide river valley filled with sediment and snowy peaks in the distance Strombolian Eruptions Stombolian eruptions look like volcanic firework displays. Explosions eject glowing volcanic bombs into the air that then fall around the crater. volcanic eruption with glowing lava seen at night Vulcanian Eruptions Vulcanian eruptions are intermittent and characterized by explosive bursts that create dark eruption columns that rise to moderate heights. volcanic ash eruption The Klamath Kaleidoscope: Fall-Winter 2021 In this issue of the Klamath Kaleidoscope, we share news of the newly published geologic type section inventory of Klamath Network parks, the latest results from white-nose syndrome monitoring in bats, our new data workflow system, updates from 2021 vital signs monitoring, and recent publications. We also highlight news about Klamath Network people, including Addis Gonzalez, Sean Mohren, Sonya Daw, Jennifer Chenoweth, and Elizabeth Raynal. Kaleidoscope image of a flower and other natural scenes. Volcanic Processes—Landslides [Site Under Development] landslide scar on a vegetated slope Fumaroles Fumaroles are places where steam and volcanic gases are emitted. They are present on most active volcanoes. The occurrence of fumaroles and other geothermal features such as hot springs, geysers, and mud pots are important signs that a volcano is active. steam vents on the crater rim Previous Fuel Treatments Around Park Infrastructure Assist Firefighters During Dixie Fire at Lassen Volcanic National Park Lassen Volcanic National Park’s fuels management program has long prioritized creating defensible space around park infrastructure. This led to success during the 2021 Dixie Fire when some park infrastructure was determined to be safe for firefighters for both access to control lines as well as good escape routes. Fuels treatments protected the Summit Lake Ranger Station from the Dixie Fire. Lassen Park Ski Area Lassen Park Ski Area grew from a single poma lift above the park highway in 1957 to include a chairlift, rope tows, and an A-frame chalet above and below the snow-covered park highway. People walk on a snowy pathway next to a two-story A-frame chalet below a ski slope. Sugar Pine Curious about the sugar pine tree in southern Oregon and northern California? Explore its natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. Long brown pine cone. Magmatic Eruptions Magmatic eruptions include fresh lava or tephra from a magma source. Magmatic eruptions range from quiet effusions of lava to extremely explosive eruptions that can blow apart mountains and send ash clouds around the globe. volcanic eruption with glowing lava seen at night Changing Patterns of Water Availability May Change Vegetation Composition in US National Parks Across the US, changes in water availability are altering which plants grow where. These changes are evident at a broad scale. But not all areas experience the same climate in the same way, even within the boundaries of a single national park. A new dataset gives park managers a valuable tool for understanding why vegetation has changed and how it might change in the future under different climate-change scenarios. Green, orange, and dead grey junipers in red soil, mountains in background Composite Volcanoes (Stratovolcanoes) Composite volcanoes are made up of both lava flows and pyroclastic deposits and usually experience multiple eruptions over long periods of time. Mount Rainier is a composite volcano. photo of a snow covered volcanic peak Volcanic Domes Lava domes are steep-sided rounded accumulations of highly viscous silicic lava over a vent. Some domes are part of composite volcanoes, but large ones can make up their own volcanoes. Lassen Peak is a dome. photo of a rounded hill of blocky rock Challenging The Ranger Image In spite of programs to encourage hiring of individuals with disabilities, it was often others’ misconceptions or discomfort that prevented women with disabilities from getting National Park Service (NPS) jobs. Those hired in the 1970s and early 1980s brought diverse skillsets and new perspectives to the workforce. Like the earliest women rangers in the 1910s and 1920s, they often only had short-term positions. They all challenged ideas of what it takes to be a park ranger. Ranger Vicky White in a wheelchair with a visitor and man in military dress. Merlin Curious about the merlin in southern Oregon and northern California? Explore its natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. Small, perched falcon with brown back, brown streaked breast, dark eyes and slight white eyebrow. Lilian Snooks Lillian Bernice Snooks was at the forefront of the late-twentieth century campaign to preserve Atsugewi culture and traditions. She was part of an extended family of women who pursued this work at Lassen Volcanic Park and other sites in a concerted effort to reject the US assimilation campaigns that they had endured as children. Older woman in peach blouse holds hand woven basket Shield Volcanoes Shield volcanoes are typically very large volcanoes with very gentle slopes made up of basaltic lava flows. Mauna Loa and Kilauea in Hawaii Volcanoes National Park are shield volcanoes. diagram of a shield volcano with lava features Cinder Cones Cinder cones are typically simple volcanoes that consist of accumulations of ash and cinders around a vent. Sunset Crater Volcano and Capulin Volcano are cinder cones. photo of a dry grassy field with a cinder cone in the distance Series: Volcanic Features Volcanoes vary greatly in size and shape. Volcanoes also may have a variety of other features, which in turn, have a great range in diversity of form, size, shape, and permanence. Many volcanoes have craters at their summits and/or at the location of other vents. Some craters contain water lakes. Lakes of molten or solidified lava may exist on some volcanoes. Fumaroles and other geothermal features are a product of heat from magma reservoirs and volcanic gases. photo of a lava lake in a summit crater Series: Volcano Types Volcanoes vary in size from small cinder cones that stand only a few hundred feet tall to the most massive mountains on earth. photo of a volcanic mountain with snow and ice Series: Volcanic Eruption Styles Categories in this traditional classification are based on the eruption styles of particular volcanoes. These magmatic eruption styles are listed in the order of increasing explosivity. volcanic eruption with glowing lava Block Flows Block lava flows have surfaces that consist of large angular blocks of lava. photo of blocky lava flows in a mountain valley. Kīpukas Kipuka are pockets of older land surfaces surrounded by younger lava flows. Kipukas are often stand out as more vegetated areas and may be older lavas or other bedrocks and surface deposits. aerial photo of a kipuka with trees surrounded by fresh lava flows Pyroclastic Flows and Ignimbrites, and Pyroclastic Surges Pyroclastic flows and surges are among the most awesome and most destructive of all volcanic phenomena. Pyroclastic flow deposits are found in at least 21 units of the National Park System. photo of a cloud of ash and dust moving down a mountain side. Jumping Spider Curious about the jumping spider in southern Oregon and northern California? Explore its natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. front view of jumping spider Common Green Darner Curious about common green darner in southern Oregon and northern California? Explore its natural history in this edition of our monthly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. Two large dragonflies, connected head to tail. Greenish brown one has tail in water. The Klamath Kaleidoscope: Fall-Winter 2022 In this issue of the Klamath Kaleidoscope, we share an article about the rocky intertidal community, as well as news about post-Dixie Fire monitoring, the upcoming Klamath Conversations gathering, vital sign monitoring this past year, and recent publications. We also highlight news about Klamath Network people, including Sean Smith’s departure, Sonya Daw’s award, intern Sarah Gwynn’s experience, and where our 2011 intern, Shadassa Ourshalimian, has landed in his career. Kaleidoscope of nature images. Series: Geologic Time—Major Divisions and NPS Fossils The National Park System contains a magnificent record of geologic time because rocks from each period of the geologic time scale are preserved in park landscapes. The geologic time scale is divided into four large periods of time—the Cenozoic Era, Mesozoic Era, Paleozoic Era, and The Precambrian. photo of desert landscape with a petrified wood log on the surface Series: Women's History in the Pacific West - California-Great Basin Collection Biographies from Northern California, Central Valley, Sierra Nevada Mountains and Nevada Map of northern California, Central Valley, Sierra Nevada Mountains and Nevada Series: Volcanic Eruption Types The most fundamental way to characterize a volcanic eruption is whether it is magmatic, phreatic, or phreatomagmatic. volcanic eruption seen at a distance 50 Nifty Finds #6: Something Fishy How do fish get up the mountain? By horse, of course! When is a plant not a plant? When you plant a fish! What? No, those aren’t nonsensical kids’ jokes. Photographs from the NPS Historic Photograph Collection will help explain. A string of mules being led along a trail carrying milk cans Common Raven Curious about the common raven in southern Oregon and northern California? Explore its natural history in this edition of our quarterly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. Glossy black head of raven vocalizing, with long, ruffed out neck feathers. 50 Nifty Finds #15: The Art of Politics Political cartoons have long been a way for artists and their editors to bring attention to important social issues or political corruption and to support meaningful causes. The NPS History Collection includes drawings by some of the most influential cartoonists from the 1920s to the 1950s. Their support publicized the National Park Service (NPS) while helping build political support to protect park resources from commercial interests. Cartoon of a foot labeled Conversations about Conservation: Eight years of scientific sharing in northern California and southern Oregon The annual December 2022 gathering of Klamath Conversations, a meeting of the parks within the National Park Service’s Klamath Network, hosted 19 presenters across a wide variety of topics. Not surprisingly, the topic of wildland fire dominated the talks, as network parks have burned extensively over the past few years. A person on stage behind a podium with a large screen nearby that reads 'Some Like It Hot'. Travel Blog: Lassen Volcanic National Park Writing Prompt: Travel Blog written by Audrey Nelson for "A Day in the Life of a Fellow" Article Series. Audrey is a NPS Workforce Management Fellow, in partnership with Northwest Youth Corps. Reflection Lake at Sunset 50 Nifty Finds #18: Portable Posters Many visitors to national parks today collect passport stamps, magnets, or other items to recall their trip and to show others where they’ve been. In the 1920s and 1930s the “must have” souvenirs weren’t created to be collected. National Park Service (NPS) windshield stickers served a practical administrative purpose; they were evidence that the automobile license fee drivers paid at some parks had been paid. Even so, Americans embraced their colorful, artistic designs. Four colorful Rocky Mountain National Park windshield stickers. Forging the Future: Investing in Youth and Seed Collection The National Park Service's California Invasive Plant Management Team is utilizing Bipartisan Infrastructure Law funds to ensure parks have the proper seeds available to restore park ecosystems. Two botanists sit in the grass and monitor of plot of vegetation at Golden Gate. The Klamath Kaleidoscope: Spring-Summer 2023 In this issue of the Klamath Kaleidoscope, we welcome the network’s new vegetation program lead, share updates to our invasive species early detection protocol, and summarize good news from the second year of water chemistry sampling for heavy metals and insecticides in network parks. We also welcome the contributions of temporary staff joining our team this year, and highlight where science writing intern, Natalie DiNenno, has landed in her career. Kaleidoscope of nature images. American Marten Curious about the American marten in southern Oregon and northern California? Explore its natural history in this edition of our quarterly “Featured Creature,” brought to you by the Klamath Inventory and Monitoring Network. Small brown mammal with orange throat and pointed ears in the snow Coming Full Circle: How Parks Are Using Conventional Tools in New Ways to Restore Imperiled Forests Depriving western old-growth forests of fire brought them to the brink. Now the fire they need also threatens them. To fix this, parks are returning to mechanical forestry methods. Firefighter walks next to a giant sequoia in a smoke-filled scene. Project Profile: Increase Native Seed Production for 14 California Parks The National Park Service is collaborating with a range of partners to increase regional production capacity for appropriate native plant seed to restore native coastal prairies, interior grasslands and wet meadows, habitat for threatened and endangered species, and provide capacity for post-fire recovery. a person stands in a field of tall grass Common Red Paintbrush Curious about common red paintbrush in southern Oregon and northern California? Explore its natural history in this edition of our quarterly "Featured Creature," brought to you by the Klamath Inventory and Monitoring Network. Flower with bright red petals sticking out of a purple stem

Lassen Volcanic Winter/Spring Guide National Park Service U.S. Department of the Interior Winter 2022 - 2023 Visitors enjoy the snow play area near the Kohm Yah-mah-nee Visitor Center in the Southwest Area. Welcome! Lassen Volcanic National Park receives as much as 30 feet of snow in its winter season. The resulting snowpack often lasts more than half of the year (approximately November to June). Despite the heavy snowfall, sunny skies are common between storms. These windows of "blue bird" days provide excellent opportunities to explore the park by snowshoe or ski or to simply enjoy the sights and sounds of winter. Southwest Area Manzanita Lake Area Steep slopes and sweeping vistas abound in the Southwest Area of the park. Beginning at 6,700 feet elevation, this area receives the most snow. The visitor center here is an excellent first stop for new winter explorers. See page 3 for location. The Manzanita Lake Area (5,800 elevation) consists of gentle slopes and scenic lakes. It offers the easiest routes for snowshoeing and cross-country skiing in the park. Vehicle Access The information desk and park store are available when the building is open. See hours on page 2. Light snacks and hot drinks may be available on weekends. The Manzanita Lake and Southwest Areas of the park are accessible throughout the winter season. Visitors can travel two miles from SR-44 to the Loomis Plaza in the Manzanita Lake Area and five miles north of SR-36 to the Kohm Yahmah-nee Visitor Center in the Southwest Area (See map on page 3). The park highway is closed to through traffic due to snow approximately November through May. During heavy winters, the highway may close to through traffic as early as late-October and open as late as mid-July. Other park roads to Juniper Lake, Butte Lake, and Warner Valley Areas are also closed in winter. Two routes around the park connect the Manzanita Lake and Southwest Areas. Travel time is approximately 90 minutes to 2 hours in normal winter driving conditions. Learn more on page 8. Kohm Yah-mah-nee Visitor Center Page Facilities and Services 2 Winter Preparedness and Safety 3 General Information 4 Winter Wildlife 5 Manzanita Lake Area Winter Routes 6 Southwest Winter Routes 7 Winter Travel 8 Need More Help? Visit nps.gov/lavo Email lavo_information@nps.gov Call (530) 595-6100 Write P.O. Box 100, Mineral, CA 96063 Share Your Experience @LassenNPS #FindYourPark The plaza includes a heated restroom, pay phone, and informational signage. The far end of the plaza is one of multiple access points for the Manzanita Lake loop. Manzanita Lake Snowshoe Route Ranger-led Snowshoe Walks Join a ranger-led snowshoe walk Saturday or Sunday, January through March. Participants will learn basic snowshoeing techniques and explore winter ecology in Lassen. Learn more on page 5. Sledding/Snow Play Area Smaller, gentler slopes are located directly behind the visitor center. Steeper slopes are accessed via a short walk along the snow-covered park highway. Sled with caution; sledding is the number one cause of visitor injury in the winter season. This 1.8-mile loop offers spectacular views of Lassen Peak and Chaos Crags. Pick up the trail anywhere between the entrance station and Loomis Plaza. This trail follows a narrow shoreline and is not recommended for skiing. More on page 6. Cross-Country Skiing Inside this Guide Content Loomis Plaza Sulphur Works Hydrothermal Area Experience the sights, sounds, and smells of the park's most accessible hydrothermal area. Snowshoe or ski one mile from the visitor center along the snow-covered park highway to reach this steamy spot. Learn more on page 7. Don't Get Burned Maintain a safe distance from hydrothermal features. Visitors have been severely burned by hot mud and water. Backcountry Skiing/Snowboarding Experienced backcountry users will appreciate the spectacular terrain and uncommon solitude in the Southwest Area. Learn more about avalanche safety on page 7. The snow-covered park highway is the most popular cross-country ski route in the park. The Manzanita Lake Area offers a gentler and more gradual climb than in the Southwest Area. There are no groomed trails in the park, however ski tracks often last between storms along this wellshaded corridor. Learn more on page 6. Sledding Areas Small hills on the northern shore of Manzanita Lake and in the Chaos Jumbles Area can be fun with small children or those new to sledding. Steeper terrain can be found at the popular Eskimo Hill snow play area located 1.2 miles east of the park turnoff on SR-44/89 (map on page 3). z Sled with caution; sledding is the number one cause of visitor injury in the winter season. This visitor guide is made possible through the support of the Lassen Association. Facilities and Services Availability of Facilities and Services Services Southwest Area Manzanita Lake Area M Information Kohm Yah-mah-nee Visitor Center open Wed-Sun, 9 am - 5 pm plus

Lassen Volcanic Guide National Park Service U.S. Department of the Interior Lassen Volcanic National Park Summer/Fall 2022 Be Alert in Burned Areas Hazards in burned areas include falling trees and limbs, loose or fallen rocks, hidden stump holes, and undefined/unmarked trails. Stay out of closed areas to protect yourself and the park. Learn more about visiting safely after the 2021 Dixie Fire on pages 8-9. Explore Your Park in... Four Hours One Day Two or More Days Half a day is just enough to enjoy several Highway Highlights (pg 3) along the 30-mile highway that connects the northwest and southwest entrances. A full day gives you time to enjoy multiple Highway Highlights (pg 3) and at least one hike in the Southwest or Manzanita Lake areas. More time provides the opportunity to enjoy longer hikes and a full day in one of the more remote areas of the park. View directions on back page. Take in the sights, sounds, and smells of Sulphur Works Hydrothermal area (pg 7). Take a hike (pg 10-11). Parking is limited at trailheads along the highway and can fill up early. Consider arriving early or going mid-week. Walk the Devastated Area Interpretive Trail (pg 10) and uncover the dramatic story of the 1914-1915 Lassen Peak eruptions. Stop for a photo or a picnic at Manzanita Lake Day Use Area. Park at the day use area off the campground road (pg 2). Enjoy a picnic (pg 6). Pick up supplies at the Manzanita Lake Camper Store or Kohm Yahmah-nee Visitor Center (pg 4). Cast a fishing line (pg 6) in one of the park's many lakes. Enjoy the Painted Dunes and Fantastic Lava Beds in the Butte Lake Area. Climb Cinder Cone for a bird's-eye view or see all three sights from the eastern shore of Butte Lake. Marvel at the Milky Way (pg 7) under Lassen Volcanic's dark night sky from one of eight campgrounds in the park (p 10). Join a ranger-led program (pg 6). Daily offerings are posted outside the Loomis Museum and Kohm Yah-mahnee Visitor Center. Be Prepared for Closures and Changes to Access Learn more about visiting Lassen Volcanic after the 2021 Dixie Fire on page 9. View current information outside the Loomis Museum and Kohm Yah-mah-nee Visitor Center and online at go.nps.gov/lavo/conditions. Inside This Guide Places to Go Services & Facilities Things to Do 2-3 4-5 6-7 For Kids & Families Dixie Fire Recovery Hiking 8 9 10-11 Camping Protect Yourself & the Park Getting Around 12-13 14-15 16 This visitor guide is made possible through support of the Lassen Association. www.lassenassociation.org Places to Go North 2021 Dixie Fire Area Pacific Crest Trail Information site Wheelchair-accessible Designated Wilderness Area Hiking trail Ranger station Food service Unpaved road Self-guided trail Cell service area Campground Picnic area Primitive campsite TH Trailhead 0 2 Kilometers 1 0 1 2 Miles Butte Lake Volcano Adventure Camp Butte Lake Lost Creek Butte Lake 13 Northwest Entrance Fantastic Lava Beds Cinder Cone Chaos Crags 14 Painted Dunes Loomis Museum Day Use Area Hot Rock 12 TH H Cluster Lakes Fantastic Lava Beds Manzanita & Summit Lakes Manzanita Lake Campground E Snag Lake Devastated Area 11 10 TH Summit Lake Twin Lakes Summit Lake North * Lassen Peak Summit Lake Summit Lake South Terrace, Shadow & Cliff Lakes Southwest 8 Horseshoe Lake Lake Helen Juniper Lake Emerald Lake 6 Bumpass Hell Little Hot Springs Valley 2 Sulphur Works Mill Creek Falls Kohm Yah-mah-nee Visitor Center Cold Boiling Lake 9 Kings Creek Access may be limited due to impacts of the Dixie Fire {C Drakesbad Guest Ranch Devils Kitchen Warner Valley Juniper Lake Juniper Lake TH Boiling Springs Lake Southwest Entrance Getting Around An area map on page 16 includes distances and travel times from nearby communities as well as directions to the Butte Lake, Warner Valley, and Juniper Lake areas. SW Southwest Area 6700 ft (2042 m) elevation The steep, rugged terrain in the Southwest Area offers dramatic vistas, moderate to difficult hikes including Lassen Peak Trail, and access to the best-known hydrothermal areas in the park: Sulphur Works and Bumpass Hell. ML Manzanita Lake Area (plus Summit Lake) 5800 ft (1768 m) elevation | 6700 (2042 m) elevation Located in the northwest corner of the park, Manzanita Lake offers the most amenities and is popular with campers and families. The largest campground in the park is a short walk from Manzanita Lake, the Camper Store, and Loomis Museum. The popular Summit Lake Campgrounds are located 12 miles southeast of Manzanita Lake. 2 Warner Valley Kings Creek Falls − Southwest Access may be limited due to impacts of the Dixie Fire Mount Harkness Terminal Geyser BL Butte Lake Area 6100 ft (1859 m) elevation This remote landscape is dominated by the jagged Fantastic Lava Beds and barren Cinder Cone volcano. The hike to its summit is both challenging and unforgettable. The campground and day use area provide a great base for hiking