2007 GSA Denver Annual Meeting (28–31 October 2007)

SHEPPARD, Paul R.1, ORT, Michael H.2, ANDERSON, Kirk C.3, CLYNNE, Michael A.4 and MAY, Elizabeth M.1, (1)Laboratory of Tree-Ring Research, University of Arizona, 105 West Stadium, Tucson, AZ 85721, (2)Departments of Environmental Sciences and Geology, Northern Arizona University, Box 4099, Flagstaff, AZ 86011, (3)Department of Anthropology, Museum of Northern Arizona, Flagstaff, AZ 86001, (4)Volcano Hazards Team, U. S. Geol Survey, 345 Middlefield Road, MS 910, Menlo Park, CA 94025, emmay@ltrr.arizona.edu