Big Pine Lake vs Pelican Lake
Water quality, depth, fish species, and recreation comparison.
Pelican Lake reads lower on nutrients and algae than Big Pine Lake. Both are in Otter Tail County, Minnesota.
Both Big Pine Lake and Pelican 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. Pelican Lake reads materially cleaner than Big Pine Lake on nutrients and algae. A gap that wide is unlikely to close in a single year of remediation work; it reflects multi-decade differences in the lakes themselves.
For a recreational visitor, the wider gap in the readings is decisive: Pelican Lake has the lower nutrient and algae numbers. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?
Big Pine Lake
Moderate clarity, visible to about 8.7 ft.
Pelican Lake
Crystal clear, you can see 16.4 ft down.
Side-by-Side Metrics
| Metric | Big Pine Lake | Pelican Lake |
|---|---|---|
| Water Clarity | 8.7 ft | 16.4 ft Better |
| Phosphorus | 26 µg/L | 15 µg/L Better |
| Chlorophyll-a (Algae) | 8 µg/L | 3 µg/L Better |
| Maximum Depth | 76 ft Better | 55 ft |
| Surface Area | 4,728 acres | 3,962 acres |
| Public Access | Yes | Yes |
| Fish Species | 20 | 20 |
| Trophic State | mesotrophic | mesotrophic |
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.
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Compare Big Pine Lake or Pelican Lake against a different lake.
Verdict
Pelican Lake reads lower on nutrients and algae than Big Pine Lake. Water clarity: 16.4 ft vs 8.7 ft. For fishing diversity, Pelican Lake also leads with 20 species.
Source: EPA National Aquatic Resource Surveys, 2026.