![]() | San BernardinoNational Wildlife Refuge - Arizona |
The San Bernardino National Wildlife Refuge is located on the U.S-Mexican border in Cochise County, Arizona. Situated at 3,720 to 3,920 feet (1,130–1,190 m) elevation in the bottom of a wide valley, the refuge encompasses a portion of the headwaters of the Yaqui River, which drains primarily western Chihuahua and eastern Sonora, Mexico.
The refuge protects several endangered species of fish endemic to the Yaqui River's watershed that reach their northernmost limits at the refuge. The fish include the Yaqui chub (Gila purpurea), beautiful shiner (Cyprinella formosa), Yaqui catfish (Ictalurus pricei), Yaqui topminnow (Poeciliopsis sonoriensis), Yaqui longfin dace (Agosia chrysogaster sp 1), and Mexican stoneroller (Campostoma ornatum).
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Cochise County Map of Arizona Surface Management Responsibility. Published by Arizona State Land Department and U.S. Bureau of Land Management (BLM).

Statewide Map of Arizona Surface Management Responsibility. Published by Arizona State Land Department and U.S. Bureau of Land Management (BLM).
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Wildlife at San Bernardino Canyon National Wildlife Refuge (NWR) in Arizona. Published by the U.S. Fish & Wildlife Service (USFWS).