- States: MT, WY
- NPCA Region: Northern Rockies
- Est. Date: 1966
Air & Climate DataView the Polluted Parks Report
This recreation area straddles the northern Wyoming and southern Montana borders, preserving approximately 68,000 acres between the Pryor and Bighorn mountain ranges. The park was established in 1966 following the construction of the Yellowtail Dam by the Bureau of Reclamation to preserve the area's diverse landscape, including the spectacular Bighorn Canyon and Bighorn Lake.
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