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United States. National Park Service, author.
Fort Collins, Colorado : U.S. Department of the Interior, National Park Service, Natural Resources Program Center, 2008.
2008
Blodgett, Robert B., author.
Fort Collins, Colorado : U.S. Department of Interior, National Park Service, Natural Resource Stewardship and Science, 2015.
2015
Goonan, Kelly, author.
Fort Collins, Colorado : U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science, 2015.
2015
Hilderbrand, G. V. (Grant Vaughan), 1971- author.
Fort Collins, Colorado : U.S. Department of the Interior, National Park Service, Natural Resource Program Center, 2013.
2013