Rockcastle Boat Ramp is a paved, single-lane ramp on Lake Barkley in Trigg County offering year-round, 24-hour access for light trailerable recreational boats.

The facility includes paved parking (26-50 capacity), a courtesy dock, seasonal restrooms, and a picnic area, with no launch fee required. This is a convenient, well-maintained access point for both fishing and paddling enthusiasts looking to get on the water.