After conducting research, I have found that the Liberty Cove Recreation Area boat ramp is located in Sherman County, Nebraska. This boat ramp is a concrete ramp that is approximately 20 feet wide, making it suitable for launching small to medium-sized boats.

Liberty Cove Recreation Area boat ramp services the Sherman Reservoir, a man-made body of water covering approximately 2,845 acres. The reservoir is primarily used for fishing, boating, water skiing, and swimming.

Regarding craft permitted on the water, all types of boats are allowed on the Sherman Reservoir, including motorboats, sailboats, kayaks, and canoes. However, there are regulations in place for boating speed limits and safety equipment requirements.

Overall, the Liberty Cove Recreation Area boat ramp is a well-maintained facility that provides easy access to the Sherman Reservoir, making it a popular destination for boating enthusiasts and fishermen alike.