LEWIS, Gabriel, Williams College Department of Geosciences, 947 Main Street, Williamstown, MA 01267, gabelewis2004@gmail.com, LEOPOLD, Matthias, Geomorphology and Soil Science, Technical University of Munich, Carl-von-Carlowitz-Platz 2, Freising-Weihenstephan, 85354, Germany, and DETHIER, David P., Dept. Geosciences, Williams College, Williamstown, MA 01267

KOLL, Rebecca A., Department of Biology, Florida Museum of Natural History, University of Florida, Gainesville, FL 32611-7800, rebecca.koll@ufl.edu and POWER, Mitchell J., Department of Geography, Natural History Museum of Utah, University of Utah, Salt Lake City, UT 84112-9155

OSBORN, Gerald, Geoscience, University of Calgary, Calgary, AB T2N 1N4, Canada, osborn@ucalgary.ca and DAVIS, P. Thompson, Department of Natural & Applied Sciences, Bentley University, 175 Forest St, Waltham, MA 02452-4705

MARCOTT, Shaun A.¹, CLARK, Peter U.², SHAKUN, Jeremy D.³, HOSTETLER, Steven W.¹, BROOK, Edward J.¹, ALDER, Jay R.¹, BARTLEIN, Patrick J.⁴, NOVAK, Anthony M.¹, CAFFEE, Marc W.⁵, and DAVIS, P. Thompson⁶, (1) College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, marcotts@geo.oregonstate.edu, (2) College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331-5506, (3) Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, (4) Department of Geography, University of Oregon, 107 Condon Hall, Eugene, OR 97403-1251, (5) Department of Physics, Purdue University, West Lafayette, IN 47906, (6) Department of Natural & Applied Sciences, Bentley University, 175 Forest St, Waltham, MA 02452-4705

JOHNSON, Bradley G.¹, SMITH, Jacqueline A.², DIEMER, John A.³, CIRONE, Ashley M.², KRUEGER, Kelsey¹, and SCHMIDT, Catherine¹, (1) Environmental Studies, Davidson College, Box 7056, Davidson, NC 28035-7056, bgjohnson@davidson.edu, (2) Physical & Biological Sciences, The College of Saint Rose, 432 Western Avenue, Albany, NY 12203, (3) Department of Geography & Earth Sciences, University of North Carolina at Charlotte, 9201 University City Boulevard, Charlotte, NC 28223

PUTKONEN, Jaakko¹, MADOFF, Risa¹, and MORGAN, Daniel², (1) Geology and Geological Engineering, University of North Dakota, MS 8358, Grand Forks, ND 58202, jaakko.putkonen@engr.und.edu, (2) Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235

MORGAN, Daniel, Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, dan.morgan@vanderbilt.edu and PUTKONEN, Jaakko, Geology and Geological Engineering, University of North Dakota, MS 8358, Grand Forks, ND 58202

TRANEL, Lisa M., STROW, Meredith L., LUEVANO, Jonathan A., and SWANSON, Brad S., Geography-Geology Department, Illinois State University, Campus Box 4400, Normal, IL 61790-4400, ltranel@ilstu.edu

HOOYER, Thomas S., Department of Geosciences, University of Wisconsin Milwaukee, P.O. Box 413, Lapham Hall 366, Milwaukee, WI 54201, hooyer@uwm.edu, COHEN, Denis, Geological and Atmospheric Sciences, Iowa State University, 253 Science 1, Ames, IA 50011, and IVERSON, Neal R., Geological and Atmospheric Sciences, Iowa State University, 253 Science I, Ames, IA 50011

TUNNICLIFFE, Jon, Department of Geography and Environmental Studies, Carleton University, B349 Loeb Building, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada, jon_tunnicliffe@carleton.ca and CHURCH, Michael, Department of Geography, The University of British Columbia, Vancouver, BC V6T 1Z2, Canada

IVERSON, Neal R.¹, HOOYER, Thomas S.², THOMASON, Jason F.³, MARCIULIONIS, Jacqueline R.⁴, ANKERSTJERNE, Suzanne¹, VREELAND, Nicholas P.¹, and GRAESCH, Matthew¹, (1) Geological and Atmospheric Sciences, Iowa State University, 253 Science I, Ames, IA 50011, niverson@iastate.edu, (2) Department of Geosciences, University of Wisconsin-Milwaukee, P.O. Box 413, Lapham Hall 366, Milwaukee, WI 53201, (3) Illinois State Geological Survey, University of Illinois Urbana-Champaign, 615 E. Peabody Dr, Champaign, IL 61820, (4) AECOM, 1035 Kepler Drive, Green Bay, WI 54311