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LakeQuality

Crow River Mill Pond vs Mud Lake

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

Crow River Mill Pond has a higher water quality grade (B, Good) than Mud Lake (D, Poor). Both are in Kandiyohi County, Minnesota.

Crow River Mill Pond and Mud 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. Crow River Mill Pond (B) is materially cleaner than Mud Lake (D). A gap that wide is unlikely to close in a single year of remediation work; it reflects multi-decade differences in the lakes themselves.

For a recreational visitor, the wider grade gap is decisive — Crow River Mill Pond is the better water-quality choice. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?

B

Crow River Mill Pond

Kandiyohi County, Minnesota

Good clarity, visible to about 10.2 ft.

D

Mud Lake

Kandiyohi County, Minnesota

Murky, only visible to about 6.2 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.

MetricCrow River Mill PondMud Lake
Overall GradeB (Good)D (Poor)
Water Clarity10.2 ft6.2 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)No dataNo data
Maximum Depth14 ft14 ft
Surface Area2.3K acres2.3K acres
Public AccessYesYes
Fish Species11
Trophic Statemesotrophiceutrophic

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

Verdict

Crow River Mill Pond wins on overall water quality with a Grade B versus Mud Lake's Grade D. Water clarity: 10.2 ft vs 6.2 ft. For fishing diversity, Crow River Mill Pond also leads with 1 species.