Field Report, Glacial Geology of Portage, Waupaca and Outagamie Counties Open-file report; contains unpublished data that has not yet been peer-reviewed. Surficial Geology Data and Resources WOFR1927-03 Field Report, Glacial Geology of Portage, Waupaca and Outagamie Counties Thwaites, F.T.; 1927 Report: 41 p. Download Related Collections Open-File Report View Open-File Report