Seminoe State Park, State park in Sinclair, United States.
Seminoe State Park is a recreation area centered on a large reservoir surrounded by rocky ridges and open shoreline in central Wyoming. The park provides multiple camping grounds and beach areas designed for water sports, fishing, and day-use visits.
The park was formally established in 1965 through a partnership between the U.S. Bureau of Reclamation and Wyoming Recreation Commission. Its creation followed dam construction that reshaped the valley into a recreational landscape.
The name Seminoe honors Basil Cimineau Lajeunesse, a French trapper who explored the area in the 1800s and left his mark on the landscape's identity.
The park is divided into separate camping zones, each with its own facilities and beach access along the water. It helps to choose your camping area ahead of time based on whether you prefer quieter surroundings or easier access to amenities.
Sand Mountain Day Use area features the longest stretch of sandy beach at the reservoir and open picnic grounds, making it popular for visitors who want to spend just a few hours without camping. Many people overlook this spot in favor of the main camping zones despite its appeal for short visits.
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