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LakeQuality
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. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

The lake sits in the mesotrophic zone — the band where most well-managed Minnesota lakes fall. Moose Lake reaches 26 ft at its deepest point — typical for Minnesota mid-sized lakes, with seasonal stratification but limited cold-water refuge. At 131 acres, Moose Lake fits the Minnesota median for monitored lakes, with 2.0 miles of shoreline. Within Todd County's 17 graded lakes, Moose Lake ranks 11 — below the local median, though not at the bottom.

No invasive species are currently listed at Moose Lake — the lake remains off the Minnesota infested-waters roster. The fishery includes walleye alongside the lake's other 13 documented species — a notable draw for Minnesota anglers. 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. 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 2024-09-10. Grade methodology: LakeGrade methodology.

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

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

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

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County Ranking

Ranked #11 of 17 lakes in Todd County

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.

Data Sources

Water quality data from the EPA Water Quality Portal

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