1. United States Geological Survey (1955) Ashton, Idaho, Montana, Wyoming Topographic Map. Map Scale 1: 250,000 and Contour Interval 200 Feet. https://ngmdb.usgs.gov/ht-bin/tv_browse.pl?id=9088e3c31141f255ee6d870d35716832
2. United States Geological Survey (1886) Canyon, Wyoming Topographic Map. Map Scale 1: 125,000 and Contour Interval 100 Feet. https://ngmdb.usgs.gov/ht-bin/tv_browse.pl?id=54ea249d696f7262a6f2baf3727b1c1a
3. United States Geological Survey (1885) Gallatin, Wyoming Topographic map. Map Scale 1: 125,000 and Contour Interval 100 Feet. https://ngmdb.usgs.gov/ht-bin/tv_browse.pl?id=bf26c56e802eecc66d3c5d56449d9584
4. United States Geological Survey (1885) Lake, Wyoming Topographic Map. Map Scale 1: 125,000 and Contour Interval 100 Feet. https://ngmdb.usgs.gov/ht-bin/tv_browse.pl?id=5d6b874504a84703d7f54fabce9ee24a
5. United States Geological Survey (1886) Shoshone, Wyoming Topographic Map. Map Scale 1: 125,000 and Contour Interval 100 Feet. https://ngmdb.usgs.gov/ht-bin/tv_browse.pl?id=8aa20140c22c3c355ef3c49d39c4197d