HANSEN, Edward C., Geological and Environmental Sciences Department, Hope College, 35 E. 12th Street, Holland, MI 49423, FISHER, Timothy, Environmental Sciences, University of Toledo, MS #604, Toledo, OH 43606, DEVRIES-ZIMMERMAN, Suzanne J., Geological and Environmental Sciences, Hope College, 35 E. 12th Street, Holland, MI 49423 and HANES, Barbara E., Department of Environmental Sciences, University of Toledo, 2801 W. Bancroft St, Toledo, OH 43606, hansen@hope.edu, hansen@hope.edu

YURK, Brian, Department of Mathematics, Hope College, PO Box 9000, Holland, MI 49422-9000, BODENBENDER, Brian E., Geological and Environmental Sciences, Hope College, 35 E 12th St, Holland, MI 49423, KILIBARDA, Zoran, Geosciences, Indiana University Northwest, 3400 Broadway, Gary, IN 46408, VAN DIJK, Deanna, Department of Geology, Geography and Environmental Studies, Calvin College, 3201 Burton St. SE, Grand Rapids, MI 49546 and HANSEN, Edward C., Geological and Environmental Sciences Department, Hope College, 35 E. 12th Street, Holland, MI 49423, bodenbender@hope.edu, bodenbender@hope.edu

LABARGE, Leah¹, MULCAHY, Connor¹, YURK, Brian² and HANSEN, Edward C.³, (1)Geological and Environmental Sciences, Hope College, 35 E 12th Street, Holland, MI 49423, (2)Department of Mathematics, Hope College, PO Box 9000, Holland, MI 49422-9000, (3)Geological and Environmental Sciences Department, Hope College, 35 E. 12th Street, Holland, MI 49423, leah.labarge@hope.edu, leah.labarge@hope.edu

KILIBARDA, Zoran¹, GOBLE, Ronald J.², VENTURELLI, Ryan¹ and GRAVES, Nolan¹, (1)Geosciences, Indiana University Northwest, 3400 Broadway, Gary, IN 46408, (2)Department of Earth and Atmospheric Sciences, University of Nebraska-Lincoln, 214 Bessey Hall, Lincoln, NE 68588, zkilibar@iun.edu, zkilibar@iun.edu

RAWLING III, J. Elmo, Geography/Geology, University of Wisconsin Platteville, 1 University Plaza, Platteville, WI 53818, HANSON, Paul R., Conservation and Survey Division, School of Natural Resources, Univ. of Nebraska, 102 Nebraska Hall, Lincoln, NE 68588-0517 and HART, David J., Wisconsin Geological and Natural History Survey, University of Wisconsin-Extension, 3817 Mineral Point Rd, Madison, WI 53705, rawlingj@uwplatt.edu, rawlingj@uwplatt.edu

ARBOGAST, Alan F., Department of Geography, Michigan State University, 673 Auditorium Road, East Lansing, MI 48824, MONAGHAN, G. William, Glenn A. Black Laboratory of Archaeology, Indiana Univ, 423 North Fess Ave, Bloomington, IN 47405 and LOVIS, William A., Department of Anthropology, Michigan State University, 354 Baker Hall, East Lansing, MI 48824, dunes@msu.edu, dunes@msu.edu

LOWELL, Thomas V., Department of Geology, University of Cincinnati, 500 Geology/Physics Building, Cincinnati, OH 45221, thomas.lowell@uc.edu, thomas.lowell@uc.edu

LOOPE, Walter L., U.S. Geol Survey, N8391 Sand Point Road, P.O. Box 40, Munising, MI 49862, JOL, Harry M., Department of Geography and Anthropology, University of Wisconsin-Eau Claire, Eau Claire, WI 54702, FISHER, Timothy G., Department of Environmental Sciences, University of Toledo, Toledo, OH 43606 and GOBLE, Ronald J., Department of Earth and Atmospheric Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588, wloope@usgs.gov, wloope@usgs.gov

CLARK, James A., Geology and Environmental Science, Wheaton College, Wheaton, IL 60187, BEFUS, Kevin M., Department of Geological Sciences, The University of Texas at Austin, 1 University Station, C1100, Austin, TX 78705 and SHARMAN, Glenn R., Geological and Environmental Sciences, Stanford University, 450 Serra Mall, Building 320, Stanford University, Stanford, CA 9305, james.clark@wheaton.edu, james.clark@wheaton.edu

JOHNSTON, John W., Department of Geography, University of Toronto Mississauga, 3359 Mississauga Road N, South Building, Mississauga, ON L5L 1C6, Canada, THOMPSON, Todd A., Indiana Geological Survey, Indiana University, 611 North Walnut Grove, Bloomington, IN 47405-2208, ARGYILAN, Erin P., Dept. of Geosciences, Indiana University Northwest, 3400 W. Broadway, Gary, IN 46408, LEPPER, Kenneth, Department of Geosciences, North Dakota State University, P.O. Box 6050, Dept. 2745, Fargo, ND 58108-6050, BAEDKE, Steve J., Geology and Environmental Science, James Madison University, MSC 6903, Harrisonburg, VA 22807 and WILCOX, Douglas A., Dept. of Env. Science and Biology, The College at Brockport, State University of New York, 350 New Campus Drive, Brockport, NY 14420, tthomps@indiana.edu, tthomps@indiana.edu

ARGYILAN, Erin, Geosciences, Indiana University Northwest, 3400 Broadway, Gary, IN 46408, LEPPER, Kenneth, Department of Geosciences, North Dakota State University, P.O. Box 6050, Dept. 2745, Fargo, ND 58108-6050, THOMPSON, Todd A., Indiana Geological Survey, Indiana University, 611 North Walnut Grove, Bloomington, IN 47405-2208, JOHNSTON, John W., Department of Geography, University of Toronto Mississauga, 3359 Mississauga Road N, South Building, Mississauga, ON L5L 1C6, Canada and WILCOX, Douglas A., Dept. of Env. Science and Biology, The College at Brockport, State University of New York, 350 New Campus Drive, Brockport, NY 14420, eargyila@iun.edu, eargyila@iun.edu

WILCOX, Douglas A., Dept. of Env. Science and Biology, The College at Brockport, State University of New York, 350 New Campus Drive, Brockport, NY 14420, BAEDKE, Steve J., Geology and Environmental Science, James Madison University, MSC 6903, Harrisonburg, VA 22807 and THOMPSON, Todd A., Indiana Geological Survey, Indiana University, 611 North Walnut Grove, Bloomington, IN 47405-2208, dwilcox@brockport.edu, dwilcox@brockport.edu

BRATTON, John F., NALEPA, Thomas F. and FUSARO, Abigail J., NOAA, Great Lakes Environmental Research Laboratory, 4840 S. State Rd, Ann Arbor, MI 48108-9719, John.Bratton@noaa.gov, John.Bratton@noaa.gov

BIRD, Brian and KOZLOWSKI, Andrew L., Geologic Survey, New York State Museum, 3140 Cultural Education Center, Albany, NY 12230, bbird@mail.nysed.gov, bbird@mail.nysed.gov