Townline Lake

Townline Lake sits at the top of the Wisconsin DNR grading rubric with an A, a mark reached by the cleanest lakes in Wisconsin. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

Trophically, Townline Lake reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. The lake bottoms out at 25 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 61 acres, Townline Lake sits below the Wisconsin median: a small water where shoreline activity has an outsized effect on water quality. Within Oneida County's 140 graded waters, Townline Lake sits at rank 14, near the top of the local distribution.

An invasive species record — Chinese Mystery Snail — has been logged at Townline Lake; Wisconsin DNR maintains the official infested-waters list. The fishery is bass-led, with 2 documented species across the lake's records. A documented public access point at Townline Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.