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LakeQuality

Dam Lake vs Long Lake

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

Dam Lake and Long Lake both received the same overall water quality grade of B (Good). Both are in Aitkin County, Minnesota.

B

Dam Lake

Aitkin County, Minnesota

Good clarity, visible to about 12 ft.

B

Long Lake

Aitkin County, Minnesota

Good clarity, visible to about 10.8 ft.

Side-by-Side Metrics

MetricDam LakeLong Lake
Overall GradeB (Good)B (Good)
Water Clarity12 ft10.8 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)No dataNo data
Maximum Depth48 ft116 ft
Surface Area597.66 acres434.72 acres
Public AccessYesYes
Fish Species1716
Trophic Statemesotrophicmesotrophic

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

Verdict

Both lakes earn the same Grade B. The tiebreakers come down to clarity (Dam Lake: 12 ft, Long Lake: 10.8 ft) and what you want from the lake. Dam Lake supports more documented fish species.