Sosa Peak Quadrangle, map, 2011; (https://texashistory.unt.edu/ark:/67531/metapth213328/m1/1/: accessed July 11, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Sosa Peak Quadrangle, map, 2011; (https://texashistory.unt.edu/ark:/67531/metapth213328/m1/1/: accessed July 11, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .