Information on Big Marine Lake

Ordinary High Water   942.20             

100-Yr. Flood Elevation  942.6 (FEMA) 

Big Marine Lake is an exceptionally clean lake with excellent recreational opportunities that include the Big Marine Park Reserve, located in the southwest corner of the lake. The shoreline is partially developed and experiencing ongoing redevelopment pressure as small seasonal cabins are converted to year-around residences. Lake levels have been generally stable since the 1985 completion of the District outlet to the St. Croix River, but does rise and fall moderately with fluctuations in annual precipitation.  Citizens are primarily concerned with protecting lake water quality, controlling spread of invasive aquatic species like Eurasian Water Milfoil (EWM), preventing new aquatic invasive species introductions, controlling lake levels, restoring wildlife and the reducing shoreline damage.