1. Radioactivity and uranium content, Sharon Springs member of the Pierre shale, Kansas and Colorado Author/Creator: Landis, Edwin R. 1926-2010, (Edwin Robert), author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1959 Format: Book Access & Availability: Loading
2. Radioactivity and uranium content, Sharon Springs member of the Pierre shale, Kansas and Colorado Author/Creator: Landis, Edwin R. 1926-2010. (Edwin Robert) Publication/Creation: Washington [D.C.] : U.S. G.P.O., 1959 Format: Book Is Part Of: U.S. Geological Survey bulletin, no. 1046. Access & Availability: Loading
3. Raggeds Wilderness, Colorado, Boundary Adjustment Author/Creator: United States. Congress. House. Committee on Resources Publication/Creation: Washington : [s.n.], 1997 Format: Book Access & Availability: Loading
4. Raggeds Wilderness, White River National Forest Boundary Adjustment Author/Creator: United States. Congress. House. Committee on Energy and Natural Resources Publication/Creation: Washington : [s.n.], 1997 Format: Book Access & Availability: Loading
5. Ramble Colorado : the wanderer's guide to the offbeat, overlooked, and outrageous Author/Creator: Peterson, Eric, 1973- Publication/Creation: Golden, Colo. : Speck Press, 2008 Format: Book Access & Availability: Loading
6. Rambles in the Rocky Mountains : with a visit to the gold fields of Colorado Author/Creator: Morris, Maurice O'Connor, 1830?- Publication/Creation: London : Smith, Elder and Co., 1864 Format: Book Access & Availability: Loading
7. Ranch notes in Kansas, Colorado, the Indian Territory and northern Texas Author/Creator: Aldridge, Reginald, author Publication/Creation: London : Longmans, Green, and Company, 1884 Format: Book Access & Availability: Loading
8. Rapid-deployment data-collection networks for wildland fire applications Publication/Creation: [Reston, Va.?] : [U.S. Dept. of the Interior, U.S. Geological Survey], 2003 Format: Book Access & Availability: Loading
9. Recent developments in the Aspen district, Colorado, Author/Creator: Knopf, Adolph, 1882-1966 Publication/Creation: Washington : Govt. Print. Off, 1926 Format: Book Is Part Of: U.S. Geological Survey bulletin, no. 785-786. Access & Availability: Loading
10. Reclamation Projects Authorization and Adjustment Act of 1989 Author/Creator: United States. Congress. House. Committee on Interior and Insular Affairs Publication/Creation: Washington : [s.n.], 1989 Format: Book Access & Availability: Loading