Sabin Lake

Sabin Lake sits at the top of the Minnesota PCA grading rubric with an A, a mark reached by the cleanest lakes in Minnesota. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

A TSI value of 36 puts Sabin Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. Sabin Lake is unusually deep for Minnesota at 52 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. Sabin Lake covers 279 acres alongside 6.2 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Within St. Louis County's 187 graded waters, Sabin Lake sits at rank 20, near the top of the local distribution.

No invasive species are currently listed at Sabin Lake — the lake remains off the Minnesota infested-waters roster. Walleye are documented at Sabin Lake, one of 10 fish species on record for the lake. A documented public access point at Sabin Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Ice-out has been recorded 7 times at Sabin Lake, with a median around Apr 23. 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.