Sinks Canyon State Park is a day-use destination in southwestern Wyoming where the Bighorn River passes through the Casper Fault, creating dramatic water features and trails.

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Geography

ContinentNorth America
RegionRocky Mountains
SubregionWestern United States
CountryUnited States
StateWyoming
CountyFremont County
DistrictCasper Basin
CityBufallo
TimezoneAmericaDenver
Latitude42.755
Longitude-106.291
Maps
🌘7:14 PM LOCAL TIME

Set amid the sagebrush and grasslands of southwest Wyoming, Sinks Canyon State Park is best known for the Sinks — a stretch where the Bighorn River disappears underground into the Casper Fault. Above ground, the river reemerges downstream as the Big Horn and offers scenic fishing; both sections are accessible via well-developed trail networks. The park’s visitor area includes restrooms, a visitor center, and picnic areas, while trails wind up to alpine viewpoints and along the canyon rim. In winter, most trails are used for snowshoeing and cross-country skiing; summer brings good hiking, camping, and interpretive programs. The park’s compact size makes it an excellent day-trip from Casper or Buffalo, with options for short walks or longer ridge routes.

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