Tuttle Lake

On the LakeGrade rubric, Tuttle Lake pulls an A: clarity at 11.5 ft and 16 µg/L of phosphorus put it in the top bracket for Wisconsin. The two scored sub-grades — clarity and phosphorus — track close together, so neither one is dragging the average down.

The lake sits in the mesotrophic zone — the band where most well-managed Wisconsin lakes fall. A maximum depth of 33 ft puts Tuttle Lake in the middle of Wisconsin's depth distribution. The lake's 151 acres and partial shoreline records put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Tuttle Lake ranks 5 of 13 in Marquette County — solidly in the upper half of the local distribution.

No invasive species are currently listed at Tuttle Lake — the lake remains off the Wisconsin infested-waters roster. The fishery is bass-led, with 3 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.