AlamosaRio Grande River Trail |
Rio Grande River Trail brochure at Alamosa National Wildlife Refuge (NWR) in Colorado. Published by the U.S. Fish & Wildlife Service (USFWS).
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El Rancho Lane
San Luis Valley National Wildlife Refuges
9383 El Rancho Lane
Alamosa, CO 81101
719 / 589 4021
719 / 587 0595 fax
alamosa@fws.gov
http://alamosa.fws.gov
Trailhead
For State relay service
TTY / Voice: 711
U.S Fish and Wildlife Service
http://www.fws.gov
Ri
o
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For Refuge Information
1 800 / 344 WILD
Alamosa
July 2009
National Wildlife Refuge
Refuge Boundary
Rio Grande Nature Trail
Refuge Road
Refuge Headquarters
End of Trail
Restrooms
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Miles
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N
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160
El Rancho
Lane
285
160
Alamosa
Road 8 South
Ri
370
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Alamosa
NWR
285
N
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miles
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kilometers
8
8
U.S. Fish & Wildlife Service
Alamosa
National Wildlife
Refuge
Rio Grande River Trail
About the Trail
This goose,
designed by J.N.
“Ding” Darling, is
the symbol of the
National Wildlife
Refuge System.
The Rio Grande River has long been
considered the life blood of the San
Luis Valley and of Alamosa National
Wildlife Refuge (NWR). While much
of the river’s dynamic nature has
been tamed, it still provides countless
wildlife benefits throughout its course.
Alamosa NWR includes more than
15 miles of critical riparian habitat
adjacent to the river. The Refuge’s Rio
Grande River trail gives you access
to 2 miles of this habitat for wildlife
viewing and photography. Please take
this brochure with you for information
about the habitat, the management,
and the wildlife seen along the trail.
For a bird’s eye view of the historic
wanderings of the Rio Grande River
and current water management
activities, take a drive to the Bluff
Overlook area on the east side of the
Refuge.
Riparian Habitats
This diverse mosaic of habitat types
is crucial to the survival of a host of
wildlife species on the Refuge. The
lush grasses provide excellent nesting
habitat for the numerous waterfowl
species on the Refuge. The tall
cottonwoods provide nesting and roost
sites for a variety of raptors, including
large concentrations of wintering bald
eagles.
■ The trail is open to pedestrian
Trail Regulations
visits from sunrise to sunset.
■ Please stay on the trail.
■ Leashed pets are welcome.
■ Bicycles are permitted, but
bicyclists must respect the
rights of the other users.
■ Hunting and fishing are prohibited.
■ Please don’t litter. Pack it in,
pack it out!
Water
Management
The most critical component of the
riparian zone along the Rio Grande
River is the low growing dense stands
of willow. These willows provide
important habitat for the endangered
southwestern willow flycatcher, which
use them for nesting and for feeding
on the abundant insects along the
river. Numerous year-round residents,
including elk and mule deer, use the
riparian corridor throughout the year.
The dense stands of willow provide
secure fawning areas for the deer, as
well as excellent thermal cover during
the winter months.
For nearly 150 years, farmers have
diverted flows from the river to
irrigate the arid landscapes of the San
Luis Valley. This practice has
significantly limited the river’s flow
pattern, altering the river’s ability to
move across the landscape as it had
done for hundreds of thousands of
years. The reduced flows considerably
impacted the riparian areas.
Along the east side of the trail is the
Chicago Ditch, which was established
in the early 1900s for irrigation. The
U. S. Fish and Wildlife Service
currently owns all the water rights
associated with this ditch. The Service
uses the water to simulate the annual
flooding which historically occurred
across the landscape and to manage
thousands of acres of wetland habitats
within the Refuge for the benefit of
migratory birds.
Along the trail you will see a wide
variety of habitat types, from lush
grasses, to dense stands of willow, to
towering cottonwood trees. All these
plant species benefit from the readily
available water provided by the river.
What To See
Spring
Typically, the river is one of the first
major areas of water to open up
within the valley, attracting large
numbers of waterfowl. Large
concentrations of bald eagles roost
along the river during this time to
feed on the arriving waterfowl as well
as on the numerous winter killed fish
found along the banks. As migration
progresses, a variety of songbird
species use the riparian corridor.
Summer
Watch for waterfowl and wading
birds using the river to rest and
feed as well as to nest in the dense
grasses. Numerous songbirds nest
in the willow habitats along the
river, including the southwestern
willow flycatcher. Beaver and
muskrats are abundant in the
river and in the Chicago Ditch.
Fall
Look for concentrations of shorebirds
and wading birds along the shallow
riverbanks. Waterfowl, especially
Canada geese, frequent the river
during this time. Occasional sandhill
cranes spend the day loafing along
the river. Fall migrations of numerous
songbirds provide great wildlife
viewing opportunities as well.
Winter
As the river freezes, wintering
bald eagles congregate along the
river searching for the remaining
waterfowl that concentrate in the
remaining pockets of open water
along the river. With the leaves
off the trees, the ever present
porcupine are readily visible.
Year-round
Encounters
Although seldom seen close up, elk,
mule deer, coyotes, and porcupines
frequent the river corridor yearround. Look for the numerous
game trails that cross the river,
as well as tracks, scat, and other
signs of wildlife activities.
Accessibility
Information
Equal opportunity to participate in
and benefit from programs and
activities of the U.S. Fish and
Wildlife Service is available to all
individuals regardless of physical or
mental ability. Dial 711 for a free
connection to the State relay service
for TTY and voice calls to and from
the speech and hearing impaired. For
more information or to address
accessibility needs, please contact the
Refuge staff at 719 / 589 4021, or the
U.S. Department of the Interior,
Office of Equal Opportunity, 1849 C
Street, NW, Washington, D.C. 20240.