Map of Oregon, Washington, Idaho, and part of Montana., map, 1870; (https://texashistory.unt.edu/ark:/67531/metapth298823/m1/1/: accessed June 11, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Map of Oregon, Washington, Idaho, and part of Montana., map, 1870; (https://texashistory.unt.edu/ark:/67531/metapth298823/m1/1/: accessed June 11, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .