Whitefish Lake

Whitefish Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Douglas County. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

A TSI value of 26 puts Whitefish Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. The lake's 102 ft maximum depth is in the upper tier for Wisconsin — deep enough for cold-water fish to find refuge in summer. Whitefish Lake covers 848 acres alongside partial shoreline records — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Whitefish Lake ranks 3 of 40 in Douglas County, putting it in the upper tier of locally monitored lakes.

Whitefish Lake carries an invasive watermilfoil record — boat-launch decontamination and shoreline care matter more here than at uninfested lakes. Walleye are documented at Whitefish Lake, one of 5 fish species on record for the lake. 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.