Sheldon National Wildlife Refuge - Humboldt County NV The Sheldon National Wildlife Refuge was established in 1931 in the desert landscape of northern Nevada and eastern Oregon and enlarged by order of President Franklin Roosevelt in December 1936, under the auspices of the Bureau of Biological Survey (Fish and Wildlife Service after 1940). It now covers 573,000 acres and is part of the Sheldon-Hart Mountain National Wildlife Refuge Complex, which is headquartered in Oregon. It harbors one of the last reasonably intact examples of a sagebrush-steppe ecosystem in the Great Basin and is known for its populations of bighorn sheep, pronghorn antelope and wild mustangs (since removed).
The Civilian...