Group at Minneopa State Park. Material: glass. Size: 4" W. x 5" L. x 1/16" D. Description: glass plate image: groups of people standing in a river bed at Minneopa Falls in Minneopa State Park, South Bend Township, Blue Earth County. Possibly mislabeled and might be a steep sandy cliff in Courthouse Park, Little LeSueur River. Photograph taken along the Little LeSueur River when the water was extremely shallow.