Keyhole State Park — Coulter Bay

Keyhole State Park offers swimming, hiking, boating, water skiing, bird-watching, and fishing. Some of the state’s largest fish have been caught at Keyhole. You can also reserve one of our 3 group shelters to host weddings, family get-togethers, and company picnics. Keyhole State Park is located on the western edge of the Black Hills, between Sundance and Moorcroft, and is easily accessed off I-90 at exit 165. Travel north 6 miles and the entrance to Park Headquarters will be on your left. IMPORTANT INFORMATION: The $10 price shown for sites is the BASE RATE FOR CAMPING ONLY. It does not reflect the total price, which may include a day-use fee, rental fee, etc. The starting price for Pat's Point day-use shelter is $65/day, the 2 larger day-use shelters are $75/day, cabins are $67.80/day, and the Tree House is $169.50 with a minimum of 2-day booking required. Smoking and pets are not permitted in overnight rental facilities.