Version history for: Robinson, Joel E., Hildreth, Wes, Fierstein, Judy, and Calvert, Andrew T., 2012, Database for the geologic map of Three Sisters volcanic cluster, Cascade Range, Oregon, in Hildreth, Wes, Fierstein, Judy, and Calvert, Andrew T., Geologic map of Three Sisters volcanic cluster, Cascade Range, Oregon: U.S. Geological Survey Scientific Investigations Map 3186, pamphlet 107 p., 2 sheets, scale 1:24,000. (Available at http://pubs.usgs.gov/sim/3186/.) Version 1.0 August 13, 2013