LEIGH, David S., Department of Geography, University of Georgia, Geog.-Geol. Building, 210 Field St., Room 204, Athens, GA 30602, dleigh@uga.edu

BEACH, Timothy, Science, Technology, and International Affairs, Georgetown University, 301 ICC, 37th and O Streets, NW, Washington, DC 20057, beacht@georgetown.edu, LUZZADDER-BEACH, Sheryl, Geography and Geoinformation Science, George Mason University, 238 Research I, MSN 6C3, 4400 University Drive, Fairfax, VA 22030-4444, and KRAUSE, Samantha M., Maya Research Program, 1910 East Southeast Loop 323 #296, Tyler, TX 75701

BARCHYN, Thomas E., Department of Geography, University of Lethbridge, 4401 University Drive, Lethbridge, AB T1K3M4, Canada, tom.barchyn@uleth.ca and HUGENHOLTZ, Chris H., Department of Geography, University of Calgary, 2500 University Drive, Calgary, AB T2N 1N4, Canada

WHITTECAR, G. Richard¹, FITZWATER, Bradley A.¹, SWEZEY, Christopher S.², and GARRITY, Christopher P.³, (1) Ocean Earth and Atmospheric Sciences, Old Dominion University, Norfolk, VA 23529, rwhittec@odu.edu, (2) U.S. Geological Survey, 12201 Sunrise Valley Drive, MS 926A National Center, Reston, VA 20192, (3) U.S. Geological Survey, 12201 Sunrise Valley Drive, MS 950 National Center, Reston, VA 20192

GRULEY, Kristine, Geography, University of Wisconsin-Madison, 550 N. Park Street, Madison, WI 53706, gruley@wisc.edu and MASON, Joseph, Geography, University of Wisconsin-Madison, 207 Science Hall, 550 North Park Street, Madison, WI 53706

LOOPE, Henry M., Indiana Geological Survey, Indiana University, 611 N. Walnut Grove Avenue, Geology Building, Bloomington, IN 47405, loope@wisc.edu, MASON, Joseph A., Department of Geography, University of Wisconsin-Madison, 550 N. Park St, 160 Science Hall, Madison, WI 53706, GOBLE, Ronald J., Department of Earth and Atmospheric Sciences, University of Nebraska - Lincoln, 214 Bessey Hall, Lincoln, NE 68588, HANSON, Paul R., School of Natural Resources, University of Nebraska-Lincoln, 3310 Holdrege Street, Lincoln, NE 68583, and YOUNG, Aaron R., School of Natural Resources, University of Nebraska-Lincoln, Lincoln, NE 68583

CARSON, Eric C.¹, RAWLING, J. Elmo III², ATTIG, John W.¹, and BATES, Benjamin R.¹, (1) Department of Environmental Sciences, Wisconsin Geological and Natural History Survey, 3817 Mineral Point Road, Madison, WI 53705, eccarson@wisc.edu, (2) Geography and Geology Program, University of Wisconsin Platteville, 1 University Plaza, Platteville, WI 53818

MCPHILLIPS, Devin, Earth Sciences, Syracuse University, 204 Heroy Geology Lab, Syracuse, NY 13244, devin.mcphillips@gmail.com, BIERMAN, Paul, Geology Department, University of Vermont, 180 Colchester Ave, Delahanty Hall, Burlington, VT 05405, and ROOD, Dylan H., AMS Laboratory, Scottish Universities Environmental Research Centre (SUERC), East Kilbride, G75 0QF, United Kingdom

BENEDETTI, Michael M., Geography and Geology, University of North Carolina Wilmington, 601 S. College Rd, Wilmington, NC 28403-3201, benedettim@uncw.edu, HAWS, Jonathan A., Anthropology, University of Louisville, Louisville, KY 40292, DANIELS, J. Michael, Geography, University of Denver, Denver, CO 80208, and FORMAN, Steven L., Earth and Environmental Sciences, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, IL 60607

MASON, Joseph A., Department of Geography, University of Wisconsin-Madison, 550 N. Park St, 160 Science Hall, Madison, WI 53706, mason@geography.wisc.edu