1. 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
2. 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
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. 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
10. Reclamation Projects Authorization and Adjustment Act of 1991 Author/Creator: United States. Congress. House. Committee on Interior and Insular Affairs Publication/Creation: Washington : [s.n.], 1991 Format: Book Access & Availability: Loading
11. Recommendation for the Department's coordination concerning cryptomining activities impacting Federal and Tribal resources Author/Creator: United States. Department of the Interior. Office of Inspector General, author Publication/Creation: [Washington, D.C.] : Office of Inspector General, U.S. Department of the Interior, 2023 Format: Book Access & Availability: Loading
12. Reconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in the Gunnison and Uncompahgre River basins and at Sweitzer Lake, west-central Colorado, 1988-89 Author/Creator: Butler, David L. 1946- (David Louis), author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1991 Format: Book Access & Availability: Loading
13. Reconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in the middle Arkansas River basin, Colorado and Kansas, 1988-89 Author/Creator: Mueller, David K., author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1991 Format: Book Access & Availability: Loading
14. Reconnaissance of benthic invertebrates from tributary streams of the Yampa and North Platte River basins, northwestern Colorado Author/Creator: Britton, Linda J., author Publication/Creation: Lakewood, Colo. : U.S. Geological Survey, 1983 Format: Book Access & Availability: Loading
15. A reconnaissance of ground-water contamination at selected landfills in Colorado Author/Creator: Schneider, Paul A. 1931- (Paul Alan), author Publication/Creation: Lakewood, Colorado : U.S. Geological Survey, 1983 Format: Book Access & Availability: Loading
16. Reconnaissance of the Book cliffs coal field between Grand river, Colorado and Sunnyside, Utah Author/Creator: Richardson, G. B. 1872-1949, (George Burr), author Publication/Creation: Washington, D.C. : Department of the Interior, United States Geological Survey, 1909 Format: Book Access & Availability: Loading
17. [Record books and decisions of Gregory District]. Author/Creator: Gregory Diggings District (Colo.) Publication/Creation: 1859-1861 Format: Book Access & Availability: Loading
18. [Record of the Secretary of the Territory, 1866-1875]. Author/Creator: Colorado Territory. Secretary's Office Publication/Creation: 1866-1875 Format: Book Access & Availability: Loading
19. Records of the States of the United States of America : a microfilm compilation Publication/Creation: [Washington, D.C.] : Library of Congress Photoduplication Service, 1949-[1951] Format: Book Access & Availability: Loading
20. Recovery Implementation Program for the Endangered Fish Species in the Upper Colorado River Author/Creator: United States. Congress. House. Committee on Resources Publication/Creation: Washington : [s.n.], 2000 Format: Book Access & Availability: Loading