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LakeQuality

Dixon Lake vs Third River Flowage Lake

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

Third River Flowage Lake has a higher water quality grade (B, Good) than Dixon Lake (C, Fair). Both are in Itasca County, Minnesota.

Both Dixon Lake and Third River Flowage Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any grade differences here are about the lakes themselves, not the agencies grading them. These two are within a letter of each other on the rubric — Dixon Lake (C) versus Third River Flowage 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.

C

Dixon Lake

Itasca County, Minnesota

Murky, only visible to about 6 ft.

B

Third River Flowage Lake

Itasca County, Minnesota

Moderate clarity, visible to about 6.9 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.

MetricDixon LakeThird River Flowage Lake
Overall GradeC (Fair)B (Good)
Water Clarity6 ft6.9 ft
Phosphorus33 µg/LNo data
Chlorophyll-a (Algae)No data5.5 µg/L
Maximum Depth29 ft69.8 ft
Surface Area622.42 acres56.5K acres
Public AccessYesYes
Fish Species11
Trophic Stateeutrophicmesotrophic

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

Verdict

Third River Flowage Lake wins on overall water quality with a Grade B versus Dixon Lake's Grade C. Water clarity: 6.9 ft vs 6 ft. For fishing diversity, Third River Flowage Lake also leads with 1 species.