United States of America
Greenbrier State Park is a Maryland state park located on South Mountain, three miles (4.8 km) northeast of Boonsboro in Washington County, Maryland, USA. The park has camping, hiking trails, and a 42-acre (17 ha) man-made lake. It is managed by the Maryland Department of Natural Resources.
Listen to the audio guide for Greenbrier State Park Free on WIP — starts by itself when you arrive, even with the screen off