Revision History for USGS Scientific Investigations Map 2927 Julie M. Donnelly-Nolan Geologic Map of Medicine Lake Volcano, Northern California ----------------------------------------------------- Added database online August 23, 2011 Released database on CD-ROM: Ramsey, D.W., Felger, T.J., Lougee, Ellen, Bruggman, P.E., and Donnelly-Nolan, J.M., 2010, Database for the geologic map of Medicine Lake volcano, northern California, in Donnelly-Nolan, J.M., Geologic map of Medicine Lake volcano, northern California: U.S. Geological Survey Scientific Investigations Map 2927 [CD-ROM]. July 2011 Posted online at http://pubs.usgs.gov/sim/2927/ February 28, 2011 -----------------------------------------------------