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LakeQuality

Swan Lake vs Ten Mile Lake

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

Swan Lake has a higher water quality grade (A, Excellent) than Ten Mile Lake (B, Good). Both are in Otter Tail County, Minnesota.

Swan Lake and Ten Mile 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 are within a letter of each other on the rubric — Swan Lake (A) versus Ten Mile Lake (B). The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.

With grades 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.

A

Swan Lake

Otter Tail County, Minnesota

Good clarity, visible to about 12.1 ft.

B

Ten Mile Lake

Otter Tail County, Minnesota

Good clarity, visible to about 13.6 ft.

Side-by-Side Metrics

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

MetricSwan LakeTen Mile Lake
Overall GradeA (Excellent)B (Good)
Water Clarity12.1 ft13.6 ft
Phosphorus17.5 µg/L24 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth44 ft51 ft
Surface Area748.9 acres1.4K acres
Public AccessYesYes
Fish Species11
Trophic Statemesotrophicmesotrophic

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

Verdict

Swan Lake wins on overall water quality with a Grade A versus Ten Mile Lake's Grade B. Water clarity: 12.1 ft vs 13.6 ft. For fishing diversity, Swan Lake also leads with 1 species.