Geological Survey (U.S.) (cartographer)1917Relief shown by contours and spot heights.Surveyed in 1917.On verso: explanation of topographic maps of the U.S. and standard symbols used.utlmaps:36c591da-4281-4e17-aae0-8f4019121321not applicable[Washington, D.C.?] : U.S. Geological Survey, [1917]http://rightsstatements.org/vocab/NoC-US/1.0/Texas Historical Topographic Maps45 x 39 cm. on sheet 50 x 41 cm.Brewster County (Tex.) -- Maps.Texas -- Maps.Texas (Brewster County) Agua Fria quadrangle U.S. Geological Survey.mapscartographicTopographic maps