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LakeQuality

Ml-Malone Lake vs Ml-Thains Lake

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

Ml-Malone Lake and Ml-Thains Lake both received the same overall water quality grade of B (Good). Both are in Mille Lacs County, Minnesota.

Ml-Malone Lake and Ml-Thains 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 — Ml-Malone Lake (B) versus Ml-Thains 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.

B

Ml-Malone Lake

Mille Lacs County, Minnesota

Murky, only visible to about 5.7 ft.

B

Ml-Thains Lake

Mille Lacs County, Minnesota

Murky, only visible to about 5.3 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.

MetricMl-Malone LakeMl-Thains Lake
Overall GradeB (Good)B (Good)
Water Clarity5.7 ft5.3 ft
Phosphorus24 µg/L26 µg/L
Chlorophyll-a (Algae)4.4 µg/L3.5 µg/L
Maximum Depth42 ft42 ft
Surface Area128.3K acres128.3K acres
Public AccessYesYes
Fish Species11
Trophic Statemesotrophicmesotrophic

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

Verdict

Both lakes earn the same Grade B. The tiebreakers come down to clarity (Ml-Malone Lake: 5.7 ft, Ml-Thains Lake: 5.3 ft) and what you want from the lake. Ml-Malone Lake matches its peer on species count.