Rabideau Lake

Rabideau Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

A TSI near 46 places Rabideau Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. Rabideau Lake is unusually deep for Minnesota at 112 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. The lake's 680 acres and 7.8 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Rabideau Lake ranks 76 of 86 in Beltrami County — at the lower end of the locally monitored distribution.

No invasive species are currently listed at Rabideau Lake — the lake remains off the Minnesota infested-waters roster. Walleye are documented at Rabideau Lake, one of 14 fish species on record for the lake. A documented public access point at Rabideau Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. 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.