Version history for: Houser, Brenda B., 2003, Geology of a Middle Tertiary clay deposit in the Patagonia Mountains near Harshaw, Santa Cruz County, southeastern Arizona, in Bliss, J.D., Moyle, P.R., and Long, K.R., eds., Contributions to industrial-minerals research: U.S. Geological Survey Bulletin 2209-I, 11 p. Version 1.0, January 5, 2005 Initial release online at http://pubs.usgs.gov/bul/b2209-i/