Shallow Lake vs Trout Lake
Water quality, depth, fish species, and recreation comparison.
Shallow Lake and Trout Lake read the same on nutrients and algae. Both are in Itasca County, Minnesota.
Both Shallow Lake and Trout Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any differences in the readings here are about the lakes themselves, not the agencies sampling them. These two sit close on the readings, Shallow Lake versus Trout 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.
Shallow Lake
Crystal clear, you can see 16.4 ft down.
Trout Lake
Crystal clear, you can see 18 ft down.
Side-by-Side Metrics
| Metric | Shallow Lake | Trout Lake |
|---|---|---|
| Water Clarity | 16.4 ft | 18 ft Better |
| Phosphorus | 9 µg/L | 3.5 µg/L Better |
| Chlorophyll-a (Algae) | 3.2 µg/L | 1.1 µg/L Better |
| Maximum Depth | 85 ft | 157 ft Better |
| Surface Area | 539 acres | 1,743 acres |
| Public Access | Yes | No |
| Fish Species | 12 Better | 9 |
| Trophic State | oligotrophic | oligotrophic |
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.
Swap a lake
Compare Shallow Lake or Trout Lake against a different lake.
Verdict
Both lakes earn the same Grade A. The tiebreakers come down to clarity (Shallow Lake: 16.4 ft, Trout Lake: 18 ft) and what you want from the lake. Shallow Lake supports more documented fish species.
Source: EPA National Aquatic Resource Surveys, 2026.