Beth Lake
Cook County, Minnesota170 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Beth Lake. Here is what has been measured.
- 22 ft max depth
- Limited data
Beth Lake in Cook County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 11.1 ft visibility. Maximum depth: 22 ft. Surface area: 170.05 acres.
Minnesota DNR's Standard Survey on August 7, 2012 caught 0.50 northern pike per gill net at Beth Lake. Length samples in the latest survey that recorded them ran 14–17 inches. DNR survey details →
Beth Lake is a 170-acre lake in Cook County, Minnesota with a maximum depth of 22 feet. The lake supports 4 documented fish species including northern pike, smallmouth bass, and white sucker. No public access — the lake is private or restricted.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2022-07-26. Methodology: how these readings are compared.
What Beth Lake is good for
From access and monitoring records, not editorial picks.
- Clear water11.1 ft of visibility
- Fishing4 species recorded
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Beth 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 Beth Lake
These are the measurements Minnesota PCA publishes for Beth Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 11.1 ft. TSI 42.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 11.1ft | 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. | 42 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Beth Lake
Answers come straight from the public measurements and survey records on this page.
Minnesota DNR's Standard Survey on August 7, 2012 caught 0.50 northern pike per gill net at Beth Lake. Length samples in the latest survey that recorded them ran 14–17 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Beth Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
2 surveys on file from MN DNR Fisheries. Most recent: 2012-08-07 (Standard Survey).
2 surveys on file · most recent 2012-08-07 (Standard Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Smallmouth Bass | 13.67 | 5–12 in 2012-08-07 | 0.48 lb |
| White Sucker | 4.04 | 21–24 in 2012-08-07 | 4.01 lb |
| Northern Pike | 0.83 | 14–17 in 2012-08-07 | 0.82 lb |
| Yellow Perch | 0.25 | 1 in 2012-08-07 |
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.
Smallmouth Bass
White Sucker
Northern Pike
Yellow Perch
From the 2012-08-07 survey
Beth Lake is 170 acres with a maximum depth of 22 feet and is located 21 miles north of Schroeder completely within the BWCAW. The lake is accessed by one of three portage routes. Alton Lake, to the east, is a 144 rod portage, or about half of a mile. Ella Lake, to the north, is a 72 rod portage, about 0.2 miles.…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Beth Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — BethFisheries Lake Survey · MN DNR LakeFinder
Lake Details
Max depth
22 ft
Surface area
170 acres
Shoreline
4.4 mi
Littoral zone
59%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
1 sq mi
HydroLAKES / HydroSHEDS
Elevation
1,844 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Stays via Stay22
Stays near Beth Lake
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Fish Species
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Fishing Beth Lake
Nearby Lakes in Cook County
Frequently asked questions about Beth Lake
Where is Beth Lake?
- Beth Lake is a lake in Cook County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Beth Lake?
- Beth Lake in Cook County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 11.1 ft visibility. Maximum depth: 22 ft. Surface area: 170.05 acres.
Is Beth Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Beth Lake?
- Beth Lake has a maximum depth of 22 feet. The lake covers 170.05 acres.
What fish are in Beth Lake?
- Fish species found in Beth Lake include northern pike, smallmouth bass, white sucker, yellow perch. Beth Lake is located in Cook County, Minnesota.
What did the DNR fisheries survey find at Beth Lake?
- Minnesota DNR's Standard Survey on August 7, 2012 caught 0.50 northern pike per gill net at Beth Lake. Length samples in the latest survey that recorded them ran 14–17 inches. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Beth Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Beth Lake?
- Public access to Beth 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
2 measurements from 2 monitoring stations, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA2 samples · 2022
Analytical methods
- Field measurement/observation, generic method
Monitoring station identifiers (2)
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