Bandera Pass Quadrangle, map, 1982; (https://texashistory.unt.edu/ark:/67531/metapth105971/m1/1/: accessed April 26, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Bandera Pass Quadrangle, map, 1982; (https://texashistory.unt.edu/ark:/67531/metapth105971/m1/1/: accessed April 26, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .