Geological Survey (U.S.)Tennessee Valley Authority. Maps and Survey Division.U.S. Coast and Geodetic Survey.United States, Georgia, Chattooga County, 34.47502, -85.34529United States, Georgia, Walker County, 34.73566, -85.30098Geological Survey (U.S.)1967Relief shown by contours and spot heights."Maps distributed by the Geological Survey.""Topography by USGS and TVA fro aerial photographs by stereophotogrammetric methods.""Control by USC&GS, USGS, and TVA.""Field examination by Tennessee Valley Authority.""Contour inteval 20 feet."Library holds 1 copy that is a special printing without contours and woodland symbols.eng[1946, reprinted 1967].Scale 1:24,000 ; polyconic proj. (W 85°30′--W 85°22′30″/N 34°37′30″--N 34°30′).Washington, D.C. : U.S. Geological Survey, 1967.http://rightsstatements.org/vocab/NoC-US/1.0/Georgia--Maps, TopographicChattooga County (Ga.)--Maps, TopographicWalker County (Ga.)--Maps, TopographicGeorgia Dougherty Gap quadrangle /Dougherty Gap quadrangleDougherty Gap, GA.StillImage