Deep Hole Picnic Ground Devils Hop Yard State Park, East Haddam, Conn.
"Devil's Hopyard State Park is a public recreation area located at the Eightmile River's Chapman Falls in the town of East Haddam, Connecticut. The 1,000-acre (400 ha) state park includes facilities for hiking, fishing, bicycling, picnicking, and camping. It is managed by the Connecticut Department of Energy and Environmental Protection..." wikipedia