Project map, Seneca Creek Watershed, Montgomery County, Maryland /
United States. Soil Conservation Service.
cartographic
Lanham, MD : USDA-SCS,
1980.
eng
Base map "Source: USGS topo sheets."
Includes location map and list of "Project sponsors."
"1-15,619."
Watershed management--Maryland--Seneca Creek Watershed (Montgomery County)--Maps.
Seneca Creek Watershed (Montgomery County, Md.)--Maps.
United States Maryland Seneca Creek Watershed (Montgomery County)
Available also through the Library of Congress Web site as a raster image.
http://hdl.loc.gov/loc.gmd/g3842s.ct008716