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.
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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.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 7 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 26 ft |
| Surface Area | 130.74 acres |
| Shoreline Length | 2 mi |
| Littoral Zone | 38% |
| Public Access | Yes |
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).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.586 m/yr | 5 |
Ice Season
Historical ice data from Minnesota DNR (13 observations).
Estimated open water season: 233 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2016-03-17 (2016) | 2018-05-01 (2018) |
| Ice-In | 2018-11-10 (2018) | 2021-12-07 (2021) |
Most recent ice-out: 2022-04-29
Location
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
More Minnesota Lake Rankings
State Parks Near Moose Lake
Other Grade C Lakes in Minnesota
Mesotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
17 surveys on file from MN DNR Fisheries. Most recent: 2023-05-01 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| SUN | 60.80 | — |
| Bluegill | 46.82 | 0.2 lb |
| CNM | 46.52 | — |
| Yellow Perch | 32.20 | 0.2 lb |
| Largemouth Bass | 26.99 | 1.05 lb |
| Black Crappie | 17.29 | 0.32 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
Yellow Perch
Largemouth Bass
Black Crappie
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…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Moose Lake. 4 reports on file.
- —Fisheries Lake Survey — MooseFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Moose (0903)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — MooseFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — MoosePublic Water Access Sites · MN DNR LakeFinder
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
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