Agate Lake is a reservoir located 1,510 feet (460 m) above sea level in Jackson County, Oregon, United States. It is 13 miles (21 km) northeast of Medford, just north of Roxy Ann Peak. The lake is formed by the 86-foot (26 m) tall Agate Dam, which impounds Dry Creek, in the Rogue River watershed. Only non motorized and electric motor boats are allowed on the Lake. Swimming, angling, rock hunting and picnicking are also popular activities.