Eagle Lake

On the LakeGrade rubric, Eagle Lake pulls an A: clarity at 23.0 ft and phosphorus readings still being added put it in the top bracket for Wisconsin. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

A TSI value of 32 puts Eagle Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. A maximum depth of 15 ft puts Eagle Lake in the middle of Wisconsin's depth distribution. At 71 acres, Eagle Lake sits below the Wisconsin median: a small water where shoreline activity has an outsized effect on water quality. Eagle Lake ranks 22 of 70 in Burnett County — solidly in the upper half of the local distribution.

An invasive species record — Chinese Mystery Snail — has been logged at Eagle Lake; Wisconsin DNR maintains the official infested-waters list. Bass fishing is part of the appeal: the species list runs to 3, anchored by largemouth and/or smallmouth bass. A documented public access point at Eagle 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.