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C

Moose Lake

Todd County, MinnesotaLimited DataMesotrophic

Moose Lake sits at a C on the grading scale — not impaired, not pristine, with summer measurements that vary year to year.

Mesotrophic conditions dominate at Moose Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. A maximum depth of 26 ft puts Moose Lake in the middle of Minnesota's depth distribution. Moose Lake covers 131 acres alongside 2.0 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Within Todd County's 17 graded lakes, Moose Lake ranks 11 — below the local median, though not at the bottom.

Moose Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. Walleye are documented at Moose Lake, one of 13 fish species on record for the lake. Public access is available — the lake is on the Minnesota PCA public-access list. Ice-out has been recorded 9 times at Moose Lake, with a median around Apr 18. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-09-10. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

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Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Moderate clarity, visible to about 7 ft. Trophic State Index: 49.

MetricValueGrade
Water Clarity (Secchi Depth)7 ftC
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)49Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth26 ft
Surface Area130.74 acres
Shoreline Length2 mi
Littoral Zone38%
Public AccessYes

Fish Species

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

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

→ Best fishing times for Moose Lake (14-day solunar calendar)

→ Is it safe to eat fish from Moose Lake? (mercury & PFAS guide)

Moose Lake fishing regulations (limits, seasons, special rules)

Water Quality Trend: Declining

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

MetricTrendChange/YearYears
Water Clarity Declining-0.586 m/yr5
See year-by-year chart →

Ice Season

Historical ice data from Minnesota DNR (13 observations).

Typical Ice-Out
Apr 18
Typical Ice-In
Dec 7

Estimated open water season: 233 days

EarliestLatest
Ice-Out2016-03-17 (2016)2018-05-01 (2018)
Ice-In2018-11-10 (2018)2021-12-07 (2021)

Most recent ice-out: 2022-04-29

Location

Loading map…

County Ranking

Ranked #11 of 17 lakes in Todd County

Cleaner Lakes Within 30 Miles

Moose Lake holds Grade C. 5 nearby lakes hold higher grades.

Nearby Lakes in Todd County

DNR Fisheries Survey Summary

17 surveys on file from MN DNR Fisheries. Most recent: 2023-05-01 (Targeted Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
SUN60.80
Bluegill46.820.2 lb
CNM46.52
Yellow Perch32.200.2 lb
Largemouth Bass26.991.05 lb
Black Crappie17.290.32 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.

Bluegill

695 fish · 69 in · 2023-05-01
3841920trophy 106789

Yellow Perch

10 fish · 512 in · 2020-07-27
320trophy 1256789101112

Largemouth Bass

301 fish · 619 in · 2023-05-01
80400trophy 20678910111213141516171819

Black Crappie

1,515 fish · 512 in · 2023-05-01
4782390trophy 1056789101112

From the 2023-05-01 survey

Moose Lake has been managed with a reduced bag limit for sunfish since 2016 when a 10 fish bag limit was enacted. This bag limit was further reduced to 5 fish in 2021. Trap netting and daytime electrofishing were performed throughout the month of May 2023 in an effort to calculate a population estimate of Bluegills…

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 Moose Lake. 4 reports on file.

EPA Impairment Status

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

Causes of impairment

Impaired biota (cause unknown)Nutrients (phosphorus, nitrogen)

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MN77-0026-00 · Official waterbody report

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

Ice data from Minnesota DNR Climate

Most recent sample: 2024-09-10

Monitoring stations: 1