Shoepack Lake
St. Louis County, MinnesotaEutrophic
Shoepack Lake comes in at a B on the grading rubric — a respectable showing for a Minnesota lake of its size and depth. Clarity is the limiting factor — phosphorus is reasonable but suspended particles or algal cells keep water transparency below Minnesota norms.
At a TSI of 51, Shoepack Lake reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. The lake bottoms out at 24 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. The lake's 299 acres and 7.2 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Shoepack Lake ranks 83 of 187 in St. Louis County — solidly in the upper half of the local distribution.
No invasive species are currently listed at Shoepack Lake — the lake remains off the Minnesota infested-waters roster. Muskie are on the species list at Shoepack Lake, alongside the lake's 3 other documented fish. No formal public access is documented at Shoepack Lake — most use is by shoreline residents and their guests. 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 2024-08-20. Grade methodology: LakeGrade methodology.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Murky, only visible to about 4.6 ft. Phosphorus level: 19.8 µg/L. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.6 ft | D |
| Phosphorus | 19.8 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 24 ft |
| Surface Area | 298.85 acres |
| Shoreline Length | 7.2 mi |
| Littoral Zone | 84% |
| Public Access | No |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Shoepack Lake (14-day solunar calendar)
→ Is it safe to eat fish from Shoepack Lake? (mercury & PFAS guide)
→ Shoepack Lake fishing regulations (limits, seasons, special rules)
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.06 m/yr | 5 |
| Phosphorus | ↓ Declining | +3.55 µg/L/yr | 4 |
Location
County Ranking
Ranked #83 of 187 lakes in St. Louis County
Nearby Lakes in St. Louis County
More Minnesota Lake Rankings
Other Grade B Lakes in Minnesota
Eutrophic Lakes in Minnesota
DNR Fisheries Survey Summary
2 surveys on file from MN DNR Fisheries. Most recent: 2025-07-22 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Yellow Perch | 25.94 | 0.08 lb |
| GOS | 18.21 | 0.01 lb |
| CNM | 13.74 | — |
| BNS | 4.97 | — |
| Muskellunge | 2.36 | 3.94 lb |
| IOD | 1.40 | — |
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.
Yellow Perch
GOS
BNS
Muskellunge
From the 2025-07-22 survey
A targeted survey of nearshore fish species in Shoepack Lake, which is located within Voyageurs National Park, was conducted on July 22 - July 24, 2025, by Lake Biological Monitoring and Assessment (LBMA) Program staff. Sampling sites were evenly spaced around the lake, and each was sampled by backpack electrofishing,…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Shoepack Lake. 1 report on file.
- —Fisheries Lake Survey — ShoepackFisheries Lake Survey · MN DNR LakeFinder
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Lake details from Minnesota DNR LakeFinder
Most recent sample: 2024-08-20
Monitoring stations: 1