Johnstown, Maryland
Johnstown is an unincorporated community in Calvert County, Maryland, United States.[1] The historic Preston-on-the-Patuxent house was listed on the National Register of Historic Places in 1974.[2]
References[]
- ^ "Geographic Names Information System". Johnstown (Populated Place). U.S. Geological Survey. 2009-01-29.
- ^ "National Register Information System". National Register of Historic Places. National Park Service. April 15, 2008.
Coordinates: 38°19′44″N 76°27′49″W / 38.32889°N 76.46361°W
Categories:
- Unincorporated communities in Calvert County, Maryland
- Unincorporated communities in Maryland
- Maryland populated places on the Chesapeake Bay
- Southern Maryland geography stubs