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Powder River (Wyoming and Montana) - Wikipedia
Livestock Handling Equipment | Powder River Equipment
The Powder River Basin: A Natural History | WyoHistory.org
Powder River Basin - Wikipedia
Powder River | river, United States | Britannica
US proposes end to federal coal leasing in Wyoming Powder River …
Middle Fork Powder River | Bureau of Land Management
Connor’s Powder River Expedition of 1865 | WyoHistory.org
Powder River: Data for Cross-Channel Profiles at 22 Sites in ...
US proposes ending new federal leases in nation's biggest coal …