Walnut Canyon National MonumentSelected ReferencesFoos, A., 1999, Geologic History of the Colorado Plateau: National Park Service website. Available on-line at: http://www.nature.nps.gov/geology/education/foos/plateau.pdf. GSA, 2009, Geologic Time Scale: Walker, J. D., and Geissman, J. W., compilers, Boulder, Colorado: The Geological Society of America. Available on-line at: at: http://www.geosociety.org/science/timescale. Mathis, A. and Bowman, C., 2005, What's in a number? Numeric ages for rocks exposed within the Grand Canyon, Part 2: Nature Notes ( Grand Canyon National Park ), v. 21, no. 2, p. 1-5. National Park Service, 2008, Walnut Canyon National Monument Geologic Resource Evaluation Report Denver, Colorado: National Park Service, Natural Resource Program Center, Geological Resources Division, Natural Resource Report NPS/NRPC/GRD/NRR—2008/040, 37 p. Available on-line at: http://www.nature.nps.gov/geology/inventory/publications/reports/waca_gre_rpt_view.pdf. National Park Service, 2007, Walnut Canyon Archeology: Walnut Canyon National Monument website: Available on-line at: http://www.nps.gov/waca/walnut-canyon-archeology.htm. National Park Service, 2007b, Antiquities Act 1906-2006 monument profiles: Walnut Canyon National Monument: National Park Service, Archeology Program website. Available on-line at: http://www.nps.gov/archeology/SITES/antiquities/profileWalnutCanyon.htm. National Park Service, 2004, Walnut Canyon Official Map and Guide: National Park Service: Walnut Canyon National Monument, 2 p. NAU, [2010], Ancestral Pueblo - Sinagua: Anthropology Laboratories of Northern Arizona University website: Available on-line at: http://jan.ucc.nau.edu/~d-antlab/Soutwestern%20Arch/Sinagua/sinagua.htm. Priest, S. S., Duffield, W. A., Malis-Clark, K., Hendley, J. W., II, and Stauffer, P. H., 2001, The San Francisco Volcanic Field, Arizona: U.S. Geological Survey Fact Sheet 017-01, 2 p. Available on-line at: http://geopubs.wr.usgs.gov/fact-sheet/fs017-01/. |
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