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.

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. Rabideau Lake covers 680 acres alongside 7.8 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Within the 92 graded lakes of Beltrami County, Rabideau Lake sits at rank 76, near the bottom of the county list.

Rabideau 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 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.