Webb Lake

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

Trophically, Webb Lake reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. The lake's 84 ft maximum depth is in the upper tier for Minnesota — deep enough for cold-water fish to find refuge in summer. The lake's 720 acres and 7.1 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Webb Lake ranks 15 of 133 in Cass County, putting it in the upper tier of locally monitored lakes.

Webb Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. Walleye are documented at Webb Lake, one of 12 fish species on record for the lake. A documented public access point at Webb Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The lake has a long ice-out record — 55 observations on file, with a median ice-out around Apr 22. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.