Henrys Lake State Park access features a paved boat ramp with ample parking, courtesy docks, and a modern fish cleaning station near the water.

The day-use area includes vault toilets, picnic tables, and a large paved parking lot designed for vehicles towing trailers.

The park is located on the southern shore of the 6,000-acre lake at 6,470 feet elevation, just 15 miles west of Yellowstone National Park.