MapWashington and vicinity, Maryland, District of Columbia, Virginia Relief shown by contours and spot heights. "Surveyed in 1913-1915." Red road overprint rev. from previous ed. Includes notes. LC copy mounted on cloth backing. Available also through the Library of Congress...
- Contributor: Sutton, Frank - Geological Survey (U.S.) - Marshall, R. (Robert Bradford)
- Date: 1926