Water Resources Data for Minnesota, 1970 Image Date Issued 1972 Author US Geological Survey Main Topic Surface Water Water Quality & Pollutants Water Use & Availability Water Education, Outreach & Community Capacity
Water Resources of the Red River of the North Drainage Basin in Minnesota Image Date Issued 1972 Author Maclay, R.W. Winter, T.C. Bidwell, L.E. Main Topic Water Education, Outreach & Community Capacity Water Use & Availability Surface Water
