Tofte Lake

Tofte Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Lake 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 35 puts Tofte Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. The lake's 73 ft maximum depth is in the upper tier for Minnesota — deep enough for cold-water fish to find refuge in summer. At 134 acres, Tofte Lake fits the Minnesota median for monitored lakes, with 4.2 miles of shoreline. Among the 142 graded lakes in Lake County, Tofte Lake ranks 5 — in the top quartile locally.

No invasive species are currently listed at Tofte Lake — the lake remains off the Minnesota infested-waters roster. 3 fish species are documented at Tofte Lake, a mixed warm-water community typical for Minnesota lakes of this size. A documented public access point at Tofte 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.