United States. Bureau of Topographical Engineers. United States Coast Survey. cartographic Military maps. lcgft Physical maps. lcgft eng General-content military map; also shows rural buildings with householders' names and extensive delineation of ravines (only in Montgomery County in the immediate vicinity of the District of Columbia). Also covers the western end of Prince George's County (Md.). Relief shown by hachures. Oriented with north toward the upper left. "Autographic Transfer printed at the Coast Survey Office, June 24th 1863." LC copy imperfect: Vertically fold-lined, torn at fold line, mounted on cloth backing. Print number at upper right: No. 32. Bibliography of "Authorities used". LC Land ownership maps, Landowners--Maryland--Montgomery County--Maps. Ravines--Maryland--Montgomery County--Maps. Montgomery County (Md.)--Maps. Prince George's County (Md.)--Maps. United States Maryland Montgomery County. United States Maryland Prince George's County. Available also through the Library of Congress Web site as a raster image. http://hdl.loc.gov/loc.gmd/g3843m.la000298