Mitawan Lake

Mitawan Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Lake County. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

A TSI value of 38 puts Mitawan Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. A maximum depth of 24 ft puts Mitawan Lake in the middle of Minnesota's depth distribution. The lake's 191 acres and 4.6 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Among the 159 graded lakes in Lake County, Mitawan Lake ranks 36 — in the top quartile locally.

No invasive species are currently listed at Mitawan Lake — the lake remains off the Minnesota infested-waters roster. The fishery includes walleye alongside the lake's other 9 documented species — a notable draw for Minnesota anglers. The lake lacks a documented public access point, so visitor use is limited. Ice-out has been logged at Mitawan Lake more than two dozen times, putting the median around May 2 — 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.