Balaban, NancyOlsen, Bruce M.Map showing requirements of well construction practices and regulations as they relate to geology and location of a well on the land surface and surroundings, scale 1:100,000, Winona County.PDFengMinnesota Geological SurveyPublicGeologic atlas of Winona County, Minnesota, C-2, Plate 7, Well ConstructionMapsMinnesota1984University of Minnesota