Plains Northwest Quadrangle, map, 1973; (https://texashistory.unt.edu/ark:/67531/metapth452477/m1/1/: accessed June 24, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Plains Northwest Quadrangle, map, 1973; (https://texashistory.unt.edu/ark:/67531/metapth452477/m1/1/: accessed June 24, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .