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Long Lake reads lower on nutrients and algae than Big Wolf Lake. Both are in Hubbard County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Big Wolf Lake and Long Lake are both in Minnesota — a same-state head-to-head where the comparison comes down to lake-specific differences in depth, watershed, and monitoring history rather than the broader state-level water-quality regime. The readings are close: Big Wolf Lake and Long Lake sit within a narrow band of each other on phosphorus, chlorophyll-a and clarity. The per-parameter table below shows where the small differences actually live.

With readings this close, the choice between the two lakes turns on non-water-quality factors: depth, fish species, public access, distance from home. The per-lake pages below cover all of those.

Big Wolf Lake

Hubbard County, Minnesota

Good clarity, visible to about 11.5 ft.

Long Lake

Hubbard County, Minnesota

Good clarity, visible to about 11.2 ft.

Side-by-Side Metrics

MetricBig Wolf LakeLong Lake
Water Clarity11.5 ft Better11.2 ft
Phosphorus21 µg/L10 µg/L Better
Chlorophyll-a (Algae)No data4.5 µg/L
Maximum Depth57 ft135 ft Better
Surface Area1,076 acres1,926 acres
Public AccessYesYes
Fish Species18 Better14
Trophic Statemesotrophicmesotrophic

A green ✓ marks the better value for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better). Surface area and trophic state carry no tick — a bigger lake is not a better lake.

Verdict

Long Lake reads lower on nutrients and algae than Big Wolf Lake. Water clarity: 11.2 ft vs 11.5 ft. For more fish-species variety, Big Wolf Lake edges ahead with 18 documented species.

Source: EPA National Aquatic Resource Surveys, 2026.