Ojakangas, R. W. and Matsch, C. L.; Minnesota's Geology, University of Minnesota Press, Minneapolis MN, 1982
Sansome, C. J. A Field Guide to Minnesota's Geology, Minnesota Underfoot, Voyageur Press, Stillwater MN, 1983
Winchell, N. H. and Upham, W.; The geological and Natural History Survey of Minnesota, 1872-1882, Vol. 1, Minneapolis: Johnson Smith and Harrison, State Printers, 1884
linked websites
 

Thank you to my family, especially my wife and daughters for their patience with me as they tagged along for my personal field trip that lasted a week.

Thank you to Dr. Tim Kroeger and Dr. John Annexstad who inspired me to learn more about geology, especially after a distasteful experience many years ago in college.

Thank you to all of the dedicated public servants who are nameless but whose information and efforts provide all of us opportunities to explore the richness of our State.  Small parts of your vast knowledge is included in this report, your willingness to share it made this report possible.