Skip to main content
LakeQuality
B

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.

MetricValueGrade
Water Clarity (Secchi Depth)4.6 ftD
Phosphorus19.8 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)51Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Maximum Depth24 ft
Surface Area298.85 acres
Shoreline Length7.2 mi
Littoral Zone84%
Public AccessNo

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).

MetricTrendChange/YearYears
Water Clarity Improving+0.06 m/yr5
Phosphorus Declining+3.55 µg/L/yr4

Location

Loading map…

County Ranking

Ranked #83 of 187 lakes in St. Louis County

Nearby Lakes in St. Louis County

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

SpeciesAvg CPUEAvg Weight
Yellow Perch25.940.08 lb
GOS18.210.01 lb
CNM13.74
BNS4.97
Muskellunge2.363.94 lb
IOD1.40

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

961 fish · 310 in · 2025-07-22
3421710345678910

GOS

589 fish · 35 in · 2025-07-22
4372190345

BNS

9 fish · 33 in · 2025-07-22
9503

Muskellunge

3 fish · 2228 in · 2025-07-22
1022232425262728

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,…

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 Shoepack Lake. 1 report 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

Most recent sample: 2024-08-20

Monitoring stations: 1