Wilson Lake

Wilson Lake sits at the top of the Wisconsin DNR grading rubric with an A, a mark reached by the cleanest lakes in Wisconsin. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

A TSI value of 34 puts Wilson Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. Wilson Lake reaches 21 ft at its deepest point — typical for Wisconsin mid-sized lakes, with seasonal stratification but limited cold-water refuge. At 155 acres, Wilson Lake fits the Wisconsin median for monitored lakes, with partial shoreline records. Wilson Lake ranks 13 of 34 in Iron County — solidly in the upper half of the local distribution.

No invasive species are currently listed at Wilson Lake — the lake remains off the Wisconsin infested-waters roster. Bass fishing is part of the appeal: the species list runs to 5, anchored by largemouth and/or smallmouth bass. A documented public access point at Wilson Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. 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.