Clark Lake
St. Louis County, Minnesota73 acresView mapDirections
No nutrient or algae sampling on record from Minnesota PCA for this lake.
- 44 ft max depth
- Limited data
Clark Lake in St. Louis County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 44 ft. Surface area: 73.43 acres.
Minnesota DNR's Standard Survey on June 24, 2013 caught 11.67 northern pike per gill net at Clark Lake. Length samples in the latest survey that recorded them ran 10–36 inches. DNR survey details →
Clark Lake is a 73-acre lake in St. Louis County, Minnesota with a maximum depth of 44 feet (21-foot average). The lake supports 7 documented fish species including bluegill, green sunfish, and hybrid sunfish. No public access — the lake is private or restricted.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2021-10-08. Methodology: how these readings are compared.
What Clark Lake is good for
From access and monitoring records, not editorial picks.
- Fishing7 species recorded
- Deep water44 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Clark 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 Clark Lake
These are the measurements Minnesota PCA publishes for Clark Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data.
Ask about Clark Lake
Answers come straight from the public measurements and survey records on this page.
Minnesota DNR's Standard Survey on June 24, 2013 caught 11.67 northern pike per gill net at Clark Lake. Length samples in the latest survey that recorded them ran 10–36 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Clark Lake’s water-quality measurements separately. 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: 2013-06-24 (Standard Survey).
1 survey on file · most recent 2013-06-24 (Standard Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Northern Pike | 11.67 | 10–36 in 2013-06-24 | 3.37 lb |
| Bluegill | 9.33 | 3–4 in 2013-06-24 | 0.04 lb |
| White Sucker | 5.33 | 6–20 in 2013-06-24 | 2.1 lb |
| Largemouth Bass | 2.33 | 5–14 in 2013-06-24 | 0.6 lb |
| Hybrid Sunfish | 0.33 | 5 in 2013-06-24 | 0.11 lb |
| Green Sunfish | 0.33 | 4 in 2013-06-24 | 0.06 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.
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
Bluegill
White Sucker
Largemouth Bass
From the 2013-06-24 survey
Clark Lake is located approximately 12 miles NW of Ely and is entirely within the BWCAW. It has a surface area of 66 acres and a maximum depth of 41 feet. It has the best water clarity of the nearby lakes with a secchi disc reading of 12 feet. Most of the shoreline is slightly steep with pine covered hills and coarse…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Clark Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — ClarkFisheries Lake Survey · MN DNR LakeFinder
Lake Details
Max depth
44 ft
Average depth
21 ft
Surface area
73 acres
Shoreline
2.5 mi
Littoral zone
33%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
1 sq mi
HydroLAKES / HydroSHEDS
Elevation
1,467 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Stays via Stay22
Stays near Clark Lake
Compare lakeside cabins, hotels, and vacation rentals near Clark 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.
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Fish Species
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Fishing Clark Lake
Nearby Lakes in St. Louis County
Frequently asked questions about Clark Lake
Where is Clark Lake?
- Clark 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 Clark Lake?
- Clark Lake in St. Louis County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 44 ft. Surface area: 73.43 acres.
Is Clark Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Clark Lake?
- Clark Lake has a maximum depth of 44 feet and an average depth of 21 feet. The lake covers 73.43 acres.
What fish are in Clark Lake?
- Fish species found in Clark Lake include bluegill, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, white sucker. Clark Lake is located in St. Louis County, Minnesota.
What did the DNR fisheries survey find at Clark Lake?
- Minnesota DNR's Standard Survey on June 24, 2013 caught 11.67 northern pike per gill net at Clark Lake. Length samples in the latest survey that recorded them ran 10–36 inches. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Clark Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Clark Lake?
- Public access to Clark 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.
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Where this data comes from
1 measurement from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA1 sample · 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