Tozer Lake

Tozer Lake sits at the top of the Wisconsin DNR grading rubric with an A, a mark reached by the cleanest lakes in Wisconsin. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

Trophically, Tozer Lake reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. At 53 ft of maximum depth, Tozer Lake stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. At 35 acres, Tozer Lake sits below the Wisconsin median: a small water where shoreline activity has an outsized effect on water quality. Tozer Lake ranks 7 of 47 in Washburn County, putting it in the upper tier of locally monitored lakes.

Tozer 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. Public access is available — the lake is on the Wisconsin DNR public-access list. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.