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Geologic atlas of Fillmore County, Minnesota, C-8, Part B, Plate 8, Sinkholes and Sinkhole Probability
- Falteisek, Jan, Witthuhn, Kathleen, M., and Alexander, E. Calvin, Jr.
Map showing location of sinkholes and likelihood of future sinkhole development, scale 1:100,000, Fillmore County.
- Minnesota Department of Natural Resources, Division of Waters
- Minnesota Geological Survey
- Minnesota, United States
- Environment and Geoscientific Information
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