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LakeQuality

Blackduck Lake vs Rabideau Lake

Water quality, depth, fish species, and recreation comparison.

Rabideau Lake has a higher water quality grade (C, Fair) than Blackduck Lake (C, Fair). Both are in Beltrami County, Minnesota.

C

Blackduck Lake

Beltrami County, Minnesota

Murky, only visible to about 6.2 ft.

C

Rabideau Lake

Beltrami County, Minnesota

Moderate clarity, visible to about 9 ft.

Side-by-Side Metrics

MetricBlackduck LakeRabideau Lake
Overall GradeC (Fair)C (Fair)
Water Clarity6.2 ft9 ft
Phosphorus39.5 µg/LNo data
Chlorophyll-a (Algae)No dataNo data
Maximum Depth28 ft112 ft
Surface Area2.7K acres680.35 acres
Public AccessYesYes
Fish Species1614
Trophic Stateeutrophicmesotrophic

Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).

Verdict

Rabideau Lake wins on overall water quality with a Grade C versus Blackduck Lake's Grade C. Water clarity: 9 ft vs 6.2 ft. For more fish-species variety, Blackduck Lake edges ahead with 16 documented species.