Jasper National Park, Patricia Lake, Pyramid Mountain, photograph, 1961; (https://texashistory.unt.edu/ark:/67531/metadc847302/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Jasper National Park, Patricia Lake, Pyramid Mountain, photograph, 1961; (https://texashistory.unt.edu/ark:/67531/metadc847302/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .