Keyhole State Park

Keyhole State Park is situated on the western edge of the Black Hills, encompassing the scenic Keyhole Reservoir. The park is notable for its mix of water-based recreation and natural landscapes, attracting outdoor enthusiasts. It derives its name from the reservoir, which was formed by the construction of the Keyhole Dam in the 1950s, and features a blend of aquatic and terrestrial ecosystems. Visitors can participate in activities such as swimming, hiking, boating, water skiing, fishing, and birdwatching. The park includes designated camping areas suitable for overnight stays. Parking is available, but it is wise to check the weather and prepare for changing conditions, as the park can be remote. Boat access is also provided for those wishing to explore the reservoir. Prior to your visit, confirm hours, fees, and any potential closures with the official state site.