Subsurface Lithologic Cross Section--Ridgeway to Eau Claire, Wisconsin Open-file report; contains unpublished data that has not yet been peer-reviewed. Bedrock Geology Data and Resources WOFR1962-05 Lithologic Cross Section From Ridgeway to Eau Claire Ostrom, M.E.; 1962 Plate: 36.5 in x 21 in Download Related Collections Open-File Report View Open-File Report