General Geology and Natural Resources of Winnebago County, Wisconsin: Field Trip Guide Book Open-file report; contains unpublished data that has not yet been peer-reviewed. Bedrock Geology Surficial Geology Data and Resources WOFR2004-03 General Geology and Natural Resources of Winnebago County, Wisconsin Hooyer, T.S.; Neiswender, Catherine; 2004 Download Related Collections Open-File Report View Open-File Report