Suggested citation and version history for Bills, Donald J., Flynn, Marilyn E., and Monroe, Stephen A., 2007, Hydrogeology of the Coconino Plateau and adjacent areas, Coconino and Yavapai Counties, Arizona: U.S. Geological Survey Scientific Investigation Report 2005-5222, 101 p. [http://pubs.usgs.gov/sir/2005/5222/]. Version 1.0 October 19, 2007 Added front cover and four plates September 28, 2007 Initial release online at http://pubs.usgs.gov/sir/2005/5222/