Kabetogama Lake

Kabetogama Lake pulls a D on the LakeGrade rubric — phosphorus loading and limited clarity hold it below the Minnesota average.

A TSI in the eutrophic range signals a lake doing what nutrient-loaded waters do — supporting an active algal community at the cost of clear water. Kabetogama Lake is unusually deep for Minnesota at 80 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. With 24,034 acres of surface and 190.5 miles of shoreline, Kabetogama Lake is a large water by Minnesota standards — recreational pressure is spread across a long shoreline. Within the 187 graded lakes of St. Louis County, Kabetogama Lake sits at rank 143, near the bottom of the county list.

Kabetogama Lake is on the Minnesota infested-waters list for zebra mussels — boaters should follow clean-drain-dry protocols when moving gear to or from the lake. The fishery includes walleye among the lake's 16 documented species — a notable draw for Minnesota anglers. A documented public access point at Kabetogama Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Ice-out has been logged at Kabetogama Lake more than two dozen times, putting the median around Apr 29 — a useful baseline for tracking climate trends. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.