- States: MT, WY
- NPCA Region: Northern Rockies
- Est. Date: 1966
Air & Climate Data
View the Polluted Parks ReportVisibility
Moderate Concern
Health
Moderate Concern
Nature
Moderate Concern
Climate
Significant Concern
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.
Preserve Our Parks
Make a tax-deductible gift today to provide a brighter future for our national parks and the millions of Americans who enjoy them.
Donate Now