Plate 1, Data Base,Plate 2, Bedrock Geology, Plate 3, Surficial Geology, Plate 4 Quaternary stratigraphy, Plate 5 Sand distribution models, Plate 6 Bedrock topography and depth-to-bedrock, Scale 1:100,000.; Surface and subsurface geology of Blue Earth County, Mn.; The Blue Earth County Board of Commissioners; The U.S. Geological Survey, Statemap program; The Minnesota Environment and Natural Resources Trust Fund as Recommended by the Legislative-Citizen Commission on Minnesota Resources