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Ames Lake and Shallow Lake read the same on nutrients and algae. Both are in Itasca County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Ames Lake and Shallow 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. These two sit close on the readings, Ames Lake versus Shallow Lake. The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.

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.

Ames Lake

Itasca County, Minnesota

Good clarity, visible to about 10 ft.

Shallow Lake

Itasca County, Minnesota

Crystal clear, you can see 16.4 ft down.

Side-by-Side Metrics

MetricAmes LakeShallow Lake
Water Clarity10 ft16.4 ft Better
Phosphorus15 µg/L9 µg/L Better
Chlorophyll-a (Algae)2.3 µg/L Better3.2 µg/L
Maximum Depth51 ft85 ft Better
Surface Area564 acres539 acres
Public AccessYesYes
Fish Species13 Better12
Trophic Statemesotrophicoligotrophic

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

Both lakes earn the same Grade A. The tiebreakers come down to clarity (Ames Lake: 10 ft, Shallow Lake: 16.4 ft) and what you want from the lake. Ames Lake supports more documented fish species.

Source: EPA National Aquatic Resource Surveys, 2026.