Rog Lake
Cook County, Minnesota54 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Rog Lake. Here is what has been measured.
- 40 ft max depth
- Limited data
Rog Lake in Cook County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 19.6 ft visibility. Maximum depth: 40 ft. Surface area: 53.73 acres.
Minnesota DNR's Standard Survey on September 16, 2013 caught 3.00 smallmouth bass per gill net at Rog Lake. Length samples in the latest survey that recorded them ran 7–15 inches. DNR survey details →
Rog Lake is a 54-acre lake in Cook County, Minnesota with a maximum depth of 40 feet (21-foot average). Overall water quality is declining over recent sampling years. The lake supports 4 documented fish species including brook trout, burbot, and smallmouth bass. No public access — the lake is private or restricted.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-06-11. Methodology: how these readings are compared.
What Rog Lake is good for
From access and monitoring records, not editorial picks.
- Clear water19.6 ft of visibility
- Fishing4 species recorded
- Deep water40 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 Rog 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 Rog Lake
These are the measurements Minnesota PCA publishes for Rog Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Crystal clear, you can see 19.6 ft down. TSI 34.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 19.6ft | 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. | 34 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Rog Lake
Answers come straight from the public measurements and survey records on this page.
Minnesota DNR's Standard Survey on September 16, 2013 caught 3.00 smallmouth bass per gill net at Rog Lake. Length samples in the latest survey that recorded them ran 7–15 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Rog Lake’s water-quality measurements separately, and the water-quality trend over 3 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
5 surveys on file from MN DNR Fisheries. Most recent: 2013-09-16 (Standard Survey).
5 surveys on file · most recent 2013-09-16 (Standard Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| White Sucker | 6.38 | 8–22 in 2013-09-16 | 1.37 lb |
| Smallmouth Bass | 3.25 | 7–15 in 2013-09-16 | 1.27 lb |
| Brook Trout | 2.74 | 18–19 in 2013-09-16 | 1.7 lb |
| Walleye | 0.50 | 2.75 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.
White Sucker
Smallmouth Bass
Brook Trout
From the 2013-09-16 survey
This was the first of two assessments scheduled in the 2006 lake management plan to determine whether a change in stocking strategy begun in 2009 resulted in improved brook trout abundance. It was hoped that stocking higher numbers of fingerlings would overcome losses to predation from smallmouth bass and possibly…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Rog Lake. 2 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — RogFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — RogFish Stocking History · MN DNR LakeFinder
Lake Details
Max depth
40 ft
Average depth
20.6 ft
Surface area
54 acres
Shoreline
1.6 mi
Littoral zone
39%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
1 sq mi
HydroLAKES / HydroSHEDS
Elevation
1,476 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Stays via Stay22
Stays near Rog Lake
Compare lakeside cabins, hotels, and vacation rentals near Rog Lake in Cook 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 Rog Lake
Prices for Oct 9–11, 4 adults. Change dates on the map below.
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Follow Rog Lake’s readings
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Fish Species
Click a species to see every lake where it is documented.
Fishing Rog Lake
Water quality readings over time
3 seasons of samples on record (2021–2025). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Worsening3 years
Nearby Lakes in Cook County
Frequently asked questions about Rog Lake
Where is Rog Lake?
- Rog 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 Rog Lake?
- Rog Lake in Cook County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 19.6 ft visibility. Maximum depth: 40 ft. Surface area: 53.73 acres.
Is Rog Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Rog Lake?
- Rog Lake has a maximum depth of 40 feet and an average depth of 20.6 feet. The lake covers 53.73 acres.
What fish are in Rog Lake?
- Fish species found in Rog Lake include brook trout, burbot, smallmouth bass, white sucker. Rog Lake is located in Cook County, Minnesota.
What did the DNR fisheries survey find at Rog Lake?
- Minnesota DNR's Standard Survey on September 16, 2013 caught 3.00 smallmouth bass per gill net at Rog Lake. Length samples in the latest survey that recorded them ran 7–15 inches. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Rog Lake’s water-quality measurements separately, and the water-quality trend over 3 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Rog Lake?
- Public access to Rog 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 Rog Lake across LakeQuality
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Where this data comes from
4 measurements from 1 monitoring station, 2022–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA4 samples · 2022–2025
Analytical methods
- Field measurement/observation, generic method
- 2130 B ~ Nephelometric Method
- 2120 B ~ Color in Water by Visual Comparison
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