Two Island Lake

Two Island Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Chippewa 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 33 puts Two Island Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. A maximum depth of 38 ft puts Two Island Lake in the middle of Wisconsin's depth distribution. At 29 acres, Two Island Lake sits below the Wisconsin median: a small water where shoreline activity has an outsized effect on water quality. Two Island Lake ranks 4 of 16 in Chippewa County, putting it in the upper tier of locally monitored lakes.

No invasive species are currently listed at Two Island Lake — the lake remains off the Wisconsin infested-waters roster. Bass fishing is part of the appeal: the species list runs to 2, anchored by largemouth and/or smallmouth bass. A documented public access point at Two Island 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.