Pronghorn antelope, the stars of the adjacent Hart Mountain National Antelope Refuge, are North America's swiftest animals, able to attain speeds of 65 mph. The local herd of 1200 is not confined to this refuge. Most of the herd winters winter in Nevada. About 450 bighorn sheep live on the rimrock ledges from Hart Mountain to Poker Jim Ridge. Expect some mosquitoes in April when the bird life is at its best.
Mosquitoes are a major food source for the migratory birds.
No fees or permits are required. If you plan to camp, note that Hot Springs Campground is free and requires no permit, but you'll need a special permit if you plan to camp anywhere else in the refuge. Off-road vehicle travel, hang gliders, excessive noise, and destruction of live plants are all banned within the refuge, and firearms are restricted. Mountain bikes are only allowed on established roads. 395, turn right on Hwy.