Boot Lake

Boot Lake sits at the top of the Minnesota PCA grading rubric with an A, a mark reached by the cleanest lakes in Minnesota.

The lake's low TSI puts it in oligotrophic territory — the cleanest of the four trophic classes, but also the most vulnerable to nutrient-driven shifts. At 83 ft of maximum depth, Boot Lake stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. At 197 acres, Boot Lake fits the Minnesota median for monitored lakes, with 4.6 miles of shoreline. Boot Lake ranks 8 of 142 in Lake County, putting it in the upper tier of locally monitored lakes.

Boot Lake has no invasive species recorded in Minnesota state databases as of 2023, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Boot Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The lake lacks a documented public access point, so visitor use is limited. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.