Photo credit: National Forest Service

The Thunder Basin National Grassland is located in northeastern Wyoming in the Powder River Basin between the Big Horn Mountains and the Black Hills. Elevation on the national grassland ranges from 3,600 to 5,200 feet, and the climate is semi-arid. The national grassland provides unique opportunities for recreation, including hiking, sightseeing, hunting, and fishing. There are no developed campgrounds; however, dispersed camping is allowed. The national grassland abounds with wildlife year-round, provides forage for livestock, and is underlain with vast mineral resources.

https://www.fs.usda.gov/main/mbr/about-forest