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LakeQuality

Shell Lake vs Toad Lake

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

Shell Lake and Toad Lake both received the same overall water quality grade of B (Good). Both are in Becker County, Minnesota.

Shell Lake and Toad 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: Shell Lake (B) and Toad Lake (B) 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.

B

Shell Lake

Becker County, Minnesota

Moderate clarity, visible to about 7.3 ft.

B

Toad Lake

Becker County, Minnesota

Moderate clarity, visible to about 7 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.

MetricShell LakeToad Lake
Overall GradeB (Good)B (Good)
Water Clarity7.3 ft7 ft
Phosphorus22 µg/L27 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth16 ft29 ft
Surface Area3.1K acres1.7K acres
Public AccessYesYes
Fish Species11
Trophic Statemesotrophiceutrophic

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 (Shell Lake: 7.3 ft, Toad Lake: 7 ft) and what you want from the lake. Shell Lake matches its peer on species count.