Winona State University - Darrell W. Krueger Library hosts the Cal Fremling Archive. Set of 35 color slides labeled "Beaver, soil, karst, flood." Part of the Cal R. Fremling collection. Slides are mostly unlabeled and not numbered consecutively. Slides show historical photos from the village of Beaver (Whitewater Township, Winona County), flooding, maps, historical river charts, aerial photographs (including Fountain City Bay), caves, karst samples, plant life, soil types, soil erosion and sinkholes, farming fertilizer, farmland, crops, and livestock including cows, sheep, and horses. Slide print dates range 1960-1984. Originally in one box.
