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B

Crow River Mill Pond

Kandiyohi County, MinnesotaLimited DataMesotrophic

Crow River Mill Pond comes in at a B on the grading rubric — a respectable showing for a Minnesota lake of its size and depth.

A TSI near 44 places Crow River Mill Pond in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. Crow River Mill Pond is a shallow lake at 14 ft maximum depth, which means it warms quickly, mixes constantly, and amplifies nutrient inputs. With 2,290 acres of surface and 37.8 miles of shoreline, Crow River Mill Pond is a large water by Minnesota standards — recreational pressure is spread across a long shoreline. Among the 35 graded lakes in Kandiyohi County, Crow River Mill Pond ranks 7 — in the top quartile locally.

No invasive species are currently listed at Crow River Mill Pond — the lake remains off the Minnesota infested-waters roster. The fishery includes walleye among the lake's 13 documented species — a notable draw for Minnesota anglers. A documented public access point at Crow River Mill Pond makes the lake usable for shore fishing, paddle craft, and trailered boats. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-09-26. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

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Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Good clarity, visible to about 10.2 ft. Trophic State Index: 44.

MetricValueGrade
Water Clarity (Secchi Depth)10.2 ftB
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)44Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth14 ft
Average Depth3.8 ft
Surface Area2.3K acres
Shoreline Length37.8 mi
Littoral Zone99%
Public AccessYes

Fish Species

black bullhead,black crappie,bluegill,bowfin (dogfish),common carp,hybrid sunfish,largemouth bass,northern pike,pumpkinseed,walleye,white sucker,yellow bullhead,yellow perch

Click a species to see all Minnesota and Wisconsin lakes where it is found.

→ Best fishing times for Crow River Mill Pond (14-day solunar calendar)

→ Is it safe to eat fish from Crow River Mill Pond? (mercury & PFAS guide)

Crow River Mill Pond fishing regulations (limits, seasons, special rules)

Water Quality Trend: Improving

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.173 m/yr5
Phosphorus Improving-1.2 µg/L/yr5
See year-by-year chart →

Location

Loading map…

County Ranking

Ranked #7 of 35 lakes in Kandiyohi County

Cleaner Lakes Within 30 Miles

Crow River Mill Pond holds Grade B. 3 nearby lakes hold higher grades.

Nearby Lakes in Kandiyohi County

DNR Fisheries Survey Summary

7 surveys on file from MN DNR Fisheries. Most recent: 2023-06-08 (Targeted Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Black Bullhead25.600.19 lb
Yellow Bass13.990.24 lb
Brown Bullhead11.440.28 lb
Pumpkinseed8.000.17 lb
Bluegill7.690.21 lb
Northern Pike5.731.59 lb

CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.

Length Distributions

Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.

Black Bullhead

16 fish · 411 in · 2023-06-08
4204567891011

Yellow Bass

94 fish · 510 in · 2023-06-08
351805678910

Brown Bullhead

352 fish · 49 in · 2003-06-16
174870456789

Pumpkinseed

18 fish · 47 in · 2023-06-08
9504567

From the 2023-06-08 survey

A targeted trapnet survey of Middle Fork Crow Reservoir "MFCR", also known as Monongalia or Mud Lake, was conducted in early June of 2023. The purpose of the survey was to determine the extent of a partial winterkill in February/March of 2023. Four lake survey trapnets were set at standard stations. At least one…

Source: MN DNR LakeFinder Fisheries Lake Survey

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Crow River Mill Pond. 4 reports on file.

Reservoir Info (USACE NID)

Crow River Mill Pond is a man-made reservoir impounded by the New London (completed 1864), built primarily for recreation on the Crow River Middle Fork; earth-type dam, 22 ft tall and 13 ft long.

Normal storage
7,025 ac-ft
Max storage
13,371 ac-ft
Drainage area
102 sq mi
Hazard class
High
Owner
MNDNR-Fisheries

Source: USACE National Inventory of Dams, NID ID MN00062 · Operator website · Matched by proximity (0.18 km)

EPA Impairment Status

Crow River Mill Pond is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Mercury

Source: EPA ATTAINS assessment unit MN34-0158-04 · Official waterbody report · Matched by proximity (0.08 km)

Data Sources

Water quality data from the EPA Water Quality Portal

Impairment status from EPA ATTAINS 303(d) database

Grading methodology based on Metropolitan Council standards

Lake details from Minnesota DNR LakeFinder

Most recent sample: 2024-09-26

Monitoring stations: 1