Marshall, R. B. (Robert Bradford), 1867-1949.Herron, W. H. (William Harrison), b. 1865.U.S. Coast and Geodetic Survey.Geological Survey (U.S.)United States, Florida, Duval County, 30.33544, -81.64801United States, Florida, Nassau County, 30.61058, -81.77142United States, Georgia, Camden County, 30.92249, -81.63639Smith, George Otis, 1871-1944.1919Relief shown by contours, isolines and spot heights."Surveyed in 1917-1918.""Surveyed in cooperation with the War Department.""R.B. Marshall, Chief Geographer. W.H. Herron, Geographer in charge. Topography by M. Blundon, E.J. Essick, C.W. Goodlove, R.L. Harrison, E.S. Huntley, H.R. Kilmer, H. Roberts, and H.E. Wallace. Control by U.S. Coast and Geodetic Survey, R.G. Clinite, C.B. Kendall, J.B. Leavitt, S.L. Parker, and H.S. Senseney.""Contour interval 10 feet.""Datum is mean sea level.""Contours off shore 5, 10, and 20 feet below mean low water."Includes "The Toppgraphic Maps of the United States" and "Conventional Signs" legend on verso.engEdition of 1919Scale 1:62,500 (W 81°45′-W 81°30′/N 30°45′-N 30°30′).[Washington, D.C.] : U.S. Geological Survey, 1919.http://rightsstatements.org/vocab/NoC-US/1.0/Florida--Maps, TopographicGeorgia--Maps, TopographicNassau County (Fla.)--Maps, TopographicDuval County (Fla.)--Maps, TopographicCamden County (Ga.)--Maps, TopographicFlorida-Georgia St. Marys quadrangle /St. Marys quadrangleSaint Marys quadrangleSt. Marys, Fla.-Ga.StillImage