Great Salt Plains State Park, photograph, September 28, 2004; (https://gateway.okhistory.org/ark:/67531/metadc1644063/m1/1/: accessed April 19, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .
Great Salt Plains State Park, photograph, September 28, 2004; (https://gateway.okhistory.org/ark:/67531/metadc1644063/m1/1/: accessed April 19, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .