Trophic State in Voyageurs National Park Lakes before and after Implementation of a Revised Water-Level Management Plan Image Date Issued 2015 Author Christensen, Victoria G. Maki, Ryan P. Main Topic Surface Water Water Quality & Pollutants Water Education, Outreach & Community Capacity
Otter Tail County Lakes Assessment [East Otter Tail Soil and Water Conservation District] Image Date Issued 2012 Main Topic Surface Water Water Quality & Pollutants Water Use & Availability Water Conveyance & Hydraulics Hydrology
