Revision History for USGS Open-File Report 2011-1265 James J. Rytuba, Roger L. Hothem, Brianne E. Brussee, and Daniel N. Goldstein Impact of Mine and Natural Sources of Mercury on Water, Sediment, and Biota in Harley Gulch Adjacent to the Abbott-Turkey Run Mine, Lake County, California ----------------------------------------------------- fixed typos, clarified terms, and improved table alignments January 5 and 23, 2012 Posted online at http://pubs.usgs.gov/of/2011/1265/ December 23, 2011 -----------------------------------------------------