TexasUnited States. Army. Corps of Engineers (cartographer)1932-01-01Tactical map.Base map U.S. Geological Survey engraving.Revised from aerial photographs and in part from the International Boundary Commission 1932.Relief indicated by contours and spot heights.utlmaps:99a2c9e9-6147-4927-b013-c57308b1fd92Englishhttps://creativecommons.org/publicdomain/mark/1.0/Texas Historical Topographic Maps45 x 40 cm.Topographic mapsTexas--MapsTexas Ochoa quadrangle : grid zone E.MapsTopographic mapsCartographic