Anne Lake
Anne Lake in St. Louis County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 14.4 ft visibility. Phosphorus: 9 µg/L. Chlorophyll-a (algae): 3.6 µg/L. Maximum depth: 27 ft. Surface area: 8.35 acres.
- Clarity
- 14.4 ft
- Max depth
- 27 ft
- Area
- 8 acres
- Trend
- → Stable
- Public access
- Yes
Next lake in St. Louis County
Why Anne Lake has no grade
We grade a lake only when its monitoring record clears the evidence bar: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Anne Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by MPCA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Anne Lake is a 8-acre lake in St. Louis County, Minnesota with a maximum depth of 27 feet. The lake supports 5 documented fish species including black crappie, bluegill, and largemouth bass. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2022-08-04. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Anne Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Good clarity, visible to about 14.4 ft. Phosphorus level: 9 µg/L. Chlorophyll-a: 3.6 µg/L. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 14.4 ft | Not graded |
| Phosphorus | 9 µg/L | Not graded |
| Chlorophyll-a (Algae) | 3.6 µg/L | Not graded |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Anne Lake
Compare lakeside cabins, hotels, and vacation rentals near Anne Lake in St. Louis County, Minnesota — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Anne Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 27 ft |
| Surface Area | 8 acres |
| Shoreline Length | 0.5 mi |
| Littoral Zone | 84% |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Paleface CreekPublic
- Dinham LakePublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Anne Lake
DNR Fisheries Survey Summary
2 surveys on file from MN DNR Fisheries. Most recent: 2001-08-14 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Black Crappie | 10.63 | 0.12 lb |
| Bluegill | 7.81 | 0.17 lb |
| Northern Pike | 7.50 | 2.54 lb |
| Yellow Perch | 3.00 | 0.11 lb |
| Largemouth Bass | 1.03 | 0.2 lb |
| Rock Bass | 0.33 | 0.3 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 Crappie
Bluegill
Northern Pike
Yellow Perch
From the 2001-08-14 survey
Anne Lake is located 7 miles northeast of Cotton, Minnesota. Anne Lake is 8 acres in area, has a maximum depth of 27 feet, and is in lake class 13. Access to the lake is off County Road 224 right-of-way, which separates Anne Lake from Wilson Lake. Anne Lake was sampled in 2001 to update information on fish population…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Anne Lake. 2 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — AnneFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Anne (1870)Aquatic Plant Report · MN DNR LakeFinder
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.039 m/yr | 5 |
Graded lakes near Anne Lake
Anne Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in St. Louis County
Frequently asked questions about Anne Lake
What is the water quality grade for Anne Lake?
- Anne Lake in St. Louis County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 14.4 ft visibility. Phosphorus: 9 µg/L. Chlorophyll-a (algae): 3.6 µg/L. Maximum depth: 27 ft. Surface area: 8.35 acres.
Is Anne Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Anne Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Algae concentration (chlorophyll-a) is 3.6 µg/L. Always check local health department advisories before swimming.
How deep is Anne Lake?
- Anne Lake has a maximum depth of 27 feet. The lake covers 8.35 acres.
What fish are in Anne Lake?
- Fish species found in Anne Lake include black crappie, bluegill, largemouth bass, northern pike, yellow perch. Anne Lake is located in St. Louis County, Minnesota.
Are there boat ramps on Anne Lake?
- Anne Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Paleface Creek, Dinham Lake. Public access is listed as yes.
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Where this data comes from
5 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA5 samples · 2022
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
- 2130 B ~ Nephelometric Method
- 2120 B ~ Color in Water by Visual Comparison
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder
Named boat-access points from the USGS National Boat Ramps inventory