A Map of St. Mary's County showing the Topography and Election Districts (1949) - Compiled from Topographic Sheets of the U.S. Geological Survey and the Corps of Engineers, U.S. Army
A Map of St. Mary's County showing the Topography and Election Districts (1949) - Compiled from Topographic Sheets of the U.S. Geological Survey and the Corps of Engineers, U.S. Army
- State of Maryland - Department of Geology, Mines, and Water Resources 1949
- 34"x40"
