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LakeQuality

Clearwater Lake vs Long Lost Lake

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

Long Lost Lake has a higher water quality grade (A, Excellent) than Clearwater Lake (A, Excellent). Both are in Clearwater County, Minnesota.

Clearwater Lake and Long Lost 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. The grades are close: Clearwater Lake (A) and Long Lost Lake (A) are within one letter of each other on the LakeGrade rubric. The per-parameter sub-grades below will show where the small differences actually live.

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

Clearwater Lake

Clearwater County, Minnesota

Good clarity, visible to about 10.3 ft.

A

Long Lost Lake

Clearwater County, Minnesota

Crystal clear, you can see 22 ft down.

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.

MetricClearwater LakeLong Lost Lake
Overall GradeA (Excellent)A (Excellent)
Water Clarity10.3 ft22 ft
Phosphorus15 µg/L10.5 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth65 ft63 ft
Surface Area998.8 acres539.04 acres
Public AccessYesYes
Fish Species11
Trophic Statemesotrophicoligotrophic

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

Verdict

Long Lost Lake wins on overall water quality with a Grade A versus Clearwater Lake's Grade A. Water clarity: 22 ft vs 10.3 ft. For fishing diversity, Long Lost Lake also leads with 1 species.