Bear Mountain Quadrangle, map, 1987; (https://texashistory.unt.edu/ark:/67531/metapth107986/m1/1/: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Bear Mountain Quadrangle, map, 1987; (https://texashistory.unt.edu/ark:/67531/metapth107986/m1/1/: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .