Finberg Lake
St. Louis County, Minnesota139 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Finberg Lake. Here is what has been measured.
- 18 ft max depth
- Limited data
Finberg Lake in St. Louis County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 6 ft visibility. Maximum depth: 18 ft. Surface area: 139.19 acres.
Minnesota DNR's Standard Survey on June 25, 1973 caught 5.00 northern pike per gill net at Finberg Lake. DNR survey details →
Finberg Lake is a 139-acre lake in St. Louis County, Minnesota with a maximum depth of 18 feet. Limited fish-species data available. No public access — the lake is private or restricted.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2021-10-12. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Finberg Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Finberg Lake
These are the measurements Minnesota PCA publishes for Finberg Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 6 ft. TSI 51.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 6ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 51 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Finberg Lake
Answers come straight from the public measurements and survey records on this page.
Minnesota DNR's Standard Survey on June 25, 1973 caught 5.00 northern pike per gill net at Finberg Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Finberg Lake’s water-quality measurements separately, and the water-quality trend over 2 years of monitoring is stable. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
1 survey on file from MN DNR Fisheries. Most recent: 1973-06-25 (Standard Survey).
1 survey on file · most recent 1973-06-25 (Standard Survey)
53 years old| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Pumpkinseed | 8.50 | 0.15 lb | |
| Northern Pike | 3.50 | 3.62 lb | |
| White Sucker | 1.38 | 0.87 lb | |
| Yellow Perch | 0.88 | 0.2 lb |
CPUE = catch per unit effort, fish caught per net per set in a standardised survey. It measures abundance, not size, and is not a weekly bite report.
From the 1973-06-25 survey
THIS LAKE IS AT PRESENT SUPPORTING AN EXCELLENT POPULATION OF NORTHERN PIKE. BOTH NUMBERS AND WEIGHTS ARE ABOVE STATE AVERAGES. THE LARGE SIZE IS PROBABLY ATTRIBUTABLE TO LIGHT FISHING PRESSURE DUE TO A LIMITED ACCESS. THE PUBLIC HAS TO ENTER THE LAKE VIA A SHALLOW STREAM FROM HWY 73. THIS STREAM IS NAVIGABLE DURING…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Finberg Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — FinbergFisheries Lake Survey · MN DNR LakeFinder
Lake Details
Max depth
18 ft
Surface area
139 acres
Shoreline
2.8 mi
Littoral zone
93%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
5 sq mi
HydroLAKES / HydroSHEDS
Elevation
1,309 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Stays via Stay22
Stays near Finberg Lake
Compare lakeside cabins, hotels, and vacation rentals near Finberg 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 Finberg Lake
Prices for Oct 9–11, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Minnesota’s top lakes →
Follow Finberg Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Finberg Lake
Water quality readings over time
2 seasons of samples on record (2020–2021). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Stable2 years
Nearby Lakes in St. Louis County
Frequently asked questions about Finberg Lake
Where is Finberg Lake?
- Finberg Lake is a lake in St. Louis County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Finberg Lake?
- Finberg Lake in St. Louis County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 6 ft visibility. Maximum depth: 18 ft. Surface area: 139.19 acres.
Is Finberg Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Finberg Lake?
- Finberg Lake has a maximum depth of 18 feet. The lake covers 139.19 acres.
What did the DNR fisheries survey find at Finberg Lake?
- Minnesota DNR's Standard Survey on June 25, 1973 caught 5.00 northern pike per gill net at Finberg Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Finberg Lake’s water-quality measurements separately, and the water-quality trend over 2 years of monitoring is stable. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Finberg Lake?
- Public access to Finberg Lake is listed as no on the lake record, so confirm before you make the trip. Seasons, size and bag limits, and whether you need a license are set by Minnesota's fish and wildlife agency, so check its current regulations before you go.
Explore Finberg Lake across LakeQuality
Fish species and the cleanest lakes across Minnesota
Fish species and best lakes in St. Louis County
Species activity outlook by water temperature and season
Top lakes and where to stay in the Lake Vermilion Area area
Where to stay at Minnesota's top lakes, each with its readings
Lakes in the Lake Superior Basin (MN+WI), ranked by water quality
Lakes in the Rainy Lake Watershed, ranked by water quality
Minnesota's cleanest lakes, ranked on agency measurements
More lakes in Minnesota
State Parks Near Finberg Lake
Other Lakes in Minnesota
Eutrophic Lakes in Minnesota
Where this data comes from
39 measurements from 1 monitoring station, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA39 samples · 2020–2021
Analytical methods
- Field measurement/observation, generic method
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder