Geological Survey (U.S.)Surveyed in 1903.; Relief indicated by contours and spot heights.; On verso: explanation and history of topographic maps of the U.S. and standard symbols used.44 x 65 centimetersJPEGUMN_ALMA:9954267280001701engU.S. Geological Survey (Washington, D.C)PublicTexas (Brewster County) Chisos Mountains quadrangleMapsTexas1923University of Minnesota