Twentysix Lake

Twentysix Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season.

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. A maximum depth of 45 ft puts Twentysix Lake in the middle of Wisconsin's depth distribution. At 218 acres, Twentysix Lake fits the Wisconsin median for monitored lakes, with partial shoreline records. Twentysix Lake ranks 27 of 57 in Burnett County — solidly in the upper half of the local distribution.

Twentysix Lake has at least one documented invasive species (Chinese Mystery Snail), so boaters and anglers should observe clean-drain-dry steps when leaving the lake. The fishery is bass-led, with 4 documented species across the lake's records. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.