R.R. Bohannon

© Richard Bohannon, 2022. Map data from Natural Earth, MNTOPO, MNDOT, Minnesota DNR, and Commission for Environmental Cooperation. Lake Agassiz shorelines based on Richard W. Ojakangas and Charles l. Matsch, Minnesota’s Geology (Univ. of Minnesota Press, 1982) and H.E. Wright. “Geologic History of Minnesota Rivers,” Educational Series 7 (Univ. of Minnesota Press, 1990). I am very much not a geologist, so any errors are also very much my own.