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Evaluation of the sensitivity of inventory and monitoring national parks to nutrient enrichment effe

Sullivan, Timothy J. (Timothy Joseph), 1950- author.
Denver, Colorado : U.S. Department of the Interior, National Park Service, Natural Resource Program Center, 2011. 2011

Geologic map of Great Sand Dunes National Park, Colorado

Madole, Richard F., 1936- cartographer.
[Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 2016. 2016

Great Sand Dunes National Park and Preserve, Colorado

[Washington, D.C.] : National Park Service, U.S. Department of the Interior, [2017] 2017

Statistical assessment of a combined analysis of upland vegetation vital signs in Greater Yellowston

Irvine, Kathryn M., author.
Fort Collins, Colorado : U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science, 2014. 2014

Alkalic rocks of Iron Hill, Gunnison County, Colorado

Larsen, Esper S. (Esper Signius), 1879-1961, author.
Washington : United States Department of the Interior, Geological Survey, 1942. 1941

Curecanti pluton, an unusual intrusive body in the Black Canyon of the Gunnison, Colorado

Hansen, Wallace R., 1920- author.
Washington, D.C. : United States Department of the Interior, Geological Survey, 1964. 1964