Earl Douglass Papers
The Earl Douglass papers (1879-1953) consist of the family and business records of Earl Douglass (1862-1931), a paleontologist from Minnesota, including the records of the discovery, history, and development of Dinosaur National Monument.

John Wesley Powell Collection
John Wesley Powell, the iconic explorer of the Colorado River, left the American southwest with a rich legacy. During his expeditions he compiled data and a number of sketches describing the landscape. This collection contains various writings and geographical publications to which Powell contributed.