Wind Lake
Lake County, MinnesotaLimited DataMesotrophic
Wind Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade.
Mesotrophic conditions dominate at Wind Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake bottoms out at 32 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. The lake's 926 acres and 17.4 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Wind Lake sits at rank 90 of 142 in Lake County, in the lower half of the local distribution.
Wind Lake has no invasive species recorded in Minnesota state databases as of 2023, though prevention practices still apply at all access points. Walleye are documented at Wind Lake, one of 10 fish species on record for the lake. The lake lacks a documented public access point, so visitor use is limited. 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 2023-07-13. 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 9 ft. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 32 ft |
| Surface Area | 926.08 acres |
| Shoreline Length | 17.4 mi |
| Littoral Zone | 74% |
| Public Access | No |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Wind Lake (14-day solunar calendar)
→ Is it safe to eat fish from Wind Lake? (mercury & PFAS guide)
→ Wind Lake fishing regulations (limits, seasons, special rules)
Water Quality Trend: ↓ Declining
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.078 m/yr | 4 |
Location
County Ranking
Ranked #90 of 142 lakes in Lake County
Nearby Lakes in Lake County
More Minnesota Lake Rankings
Other Grade C Lakes in Minnesota
Mesotrophic Lakes in Minnesota
Compare Wind Lake With Nearby Lakes
DNR Fisheries Survey Summary
2 surveys on file from MN DNR Fisheries. Most recent: 2011-09-06 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Northern Pike | 7.20 | 2.71 lb |
| White Sucker | 6.39 | 1.28 lb |
| Rock Bass | 3.05 | 0.14 lb |
| Walleye | 2.69 | 2.59 lb |
| Bluegill | 1.53 | 0.13 lb |
| Smallmouth Bass | 1.22 | 1.52 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.
Northern Pike
White Sucker
Rock Bass
Walleye
From the 2011-09-06 survey
Status of the Fishery Wind Lake is located approximately 14 miles NE of Ely, MN and is entirely within the BWCAW. It has a surface area of 1,009 acres and a maximum depth of 32 ft. Wind was thermally stratified on 09/06/2011, the first day of sampling, with a surface temperature of 67.6*F and a bottom temperature of…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Wind Lake. 1 report on file.
- —Fisheries Lake Survey — WindFisheries Lake Survey · MN DNR LakeFinder
Reservoir Info (USACE NID)
Wind Lake is a man-made reservoir impounded by the Wind Lake (completed 1900), built primarily for other on the Basswood River-TR; other-type dam, 8 ft tall and 107 ft long.
- Surface area
- 1,009 ac
- Normal storage
- 15,232 ac-ft
- Max storage
- 15,232 ac-ft
- Hazard class
- Low
- Owner
- USDA FS
Source: USACE National Inventory of Dams, NID ID MN00086 · Operator website
EPA Impairment Status
Wind Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN38-0642-00 · 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
Most recent sample: 2023-07-13
Monitoring stations: 8