Island of Potomac River
Heron Island is a sandbar located in the Potomac River east-north-east of Saint Clement's Island in St. Mary's County, Maryland, United States. The closest town is Colton's Point, Maryland, 1⁄2 mile to the north. The island is named for the large numbers of herons seen by the European colonists when they arrived in 1634.[1]
References
38°12′59.65″N 76°43′29.25″W / 38.2165694°N 76.7247917°W / 38.2165694; -76.7247917