Thomas, Cowperthwait & Co.Relief shown by hachures and spot heights. Shows counties, the Apache and Comanche Indian areas, the Cross Timbers, roads, and land "explored by LeGrand in 1833." In lower left margin: "Entered according to act of Congress, in the year 1850, by Thomas, Cowperthwait & Co., in the Clerk's office of the District court of the Eastern District of Pennsylvania." Appears in: A New Universal Atlas. Prime meridians: Greenwich and Washington. Inset: Texas North of the Red River. In lower right margin: "25."29 x 36 centimetersJPEGUMN_ALMA:9923062940001701engThomas, Cowperthwait & Co. (Philadelphia), 185-?PublicMap of Texas from the most recent authoritiesMapsTexas1850-1859University of Minnesota