Thunder Basin National Grassland
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Thunder Basin National Grassland | |
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IUCN Category VI (Managed Resource Protected Area) | |
Location: | Wyoming, United States |
Nearest city: | Casper, WY |
Coordinates: | |
Area: | 572,000 acres (2,314 km²) |
Established: | June 23, 1960 |
Governing body: | U.S. Forest Service |
Thunder Basin National Grassland is a National Grassland in Wyoming, USA. It is located in the Powder River Basin between the Bighorn Mountains and the Black Hills. The largest coal mine in the world is located within the grassland.