Geological Survey (U.S.)Relief shown by contours and spot heights.; Road overprint dated "Jan. 1929" printed in red.; "Culture revised in 1927 ..."; Includes notes.117 x 107 centimetersJPEGUMN_ALMA:9974084156601701engDept. of the Interior, U.S. Geological Survey (Washington, D.C)PublicWashington and vicinity, Maryland, District of Columbia, VirginiaMapsDistrict of Columbia--WashingtonMaryland--WashingtonDistrict of ColumbiaMaryland1929University of Minnesota