1. Correlation of geologic formations between east-central Colorado, central Wyoming and southern Montana Author/Creator: Lee, Willis T. 1864-1926, (Willis Thomas), author Publication/Creation: Washington : Department of the Interior, U.S. Geological Survey, 1927 Resource Type: Book Access & Availability: Loading
2. Coal resources of the Raton coal field, Colfax County, New Mexico Author/Creator: Lee, Willis T. 1864-1926, (Willis Thomas), author Publication/Creation: [Washington, D.C.] : Department of the Interior, United States Geological Survey, 1924 Resource Type: Book Access & Availability: Loading
3. Geology and paleontology of the Raton mesa and other regions in Colorado and New Mexico Author/Creator: Lee, Willis T. 1864-1926, (Willis Thomas), author Publication/Creation: Washington : Department of the Interior, United States Geological Survey, 1917 Resource Type: Book Access & Availability: Loading
4. Relation of the Cretaceous formations to the Rocky Mountains in Colorado and New Mexico Author/Creator: Lee, Willis T. 1864-1926, (Willis Thomas), author Publication/Creation: Washington : Department of the Interior, United States Geological Survey, 1916 Resource Type: Book Access & Availability: Loading
5. Guidebook of the western United States. Part B, The Overland route, with a side trip to Yellowstone Park Author/Creator: Lee, Willis T. 1864-1926, (Willis Thomas), author Publication/Creation: [Washington, D.C.] : Department of the Interior, United States Geological Survey, 1915 Resource Type: Book Access & Availability: Loading
6. Coal fields of Grand Mesa and the West Elk Mountains, Colorado Author/Creator: Lee, Willis T. 1864-1926, (Willis Thomas), author Publication/Creation: [Washington, D.C.] : Department of the Interior, United States Geological Survey, 1912 Resource Type: Book Access & Availability: Loading
7. The Manzano group of the Rio Grande valley, New Mexico Author/Creator: Lee, Willis T. 1864-1926, (Willis Thomas), author Publication/Creation: Washington, D.C. : Department of the Interior, United States Geological Survey, 1909 Resource Type: Book Access & Availability: Loading
8. Geologic reconnaissance of a part of western Arizona Author/Creator: Lee, Willis T. 1864-1926, (Willis Thomas), author Publication/Creation: Washington, D.C. : Department of the Interior, United States Geological Survey, 1908 Resource Type: Book Access & Availability: Loading