Manomin Lake
Lake County, Minnesota409 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Manomin Lake. Here is what has been measured.
- 18 ft max depth
- Limited data
Manomin Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 2 ft visibility. Maximum depth: 18 ft. Surface area: 409.05 acres.
Minnesota DNR's Standard Survey on June 15, 2015 caught 0.67 northern pike per gill net at Manomin Lake. Length samples in the latest survey that recorded them ran 15–18 inches. DNR survey details →
Manomin Lake is a 409-acre lake in Lake County, Minnesota with a maximum depth of 18 feet. Overall water quality is declining over recent sampling years. The lake supports 5 documented fish species including largemouth bass, northern pike, and pumpkinseed. No public access — the lake is private or restricted.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-07-12. Methodology: how these readings are compared.
Manomin Lake covers about 410 acres in Lake County. For a place on the water, look through cabin and lake-house rentals near Manomin Lake on Vrbo. For a hotel or motel room, Booking.com and Expedia both search around the lake.
What Manomin Lake is good for
From access and monitoring records, not editorial picks.
- Fishing5 species recorded
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Manomin 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 Manomin Lake
These are the measurements Minnesota PCA publishes for Manomin Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 2 ft of visibility. TSI 67.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2ft | 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. | 67 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Manomin Lake
Answers come straight from the public measurements and survey records on this page.
Minnesota DNR's Standard Survey on June 15, 2015 caught 0.67 northern pike per gill net at Manomin Lake. Length samples in the latest survey that recorded them ran 15–18 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Manomin Lake’s water-quality measurements separately, and the water-quality trend over 5 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
3 surveys on file from MN DNR Fisheries. Most recent: 2015-06-15 (Standard Survey).
3 surveys on file · most recent 2015-06-15 (Standard Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Yellow Perch | 18.69 | 4–10 in 2015-06-15 | 0.21 lb |
| White Sucker | 13.47 | 5–18 in 2015-06-15 | 0.87 lb |
| Northern Pike | 2.83 | 15–18 in 2015-06-15 | 2.05 lb |
| Pumpkinseed | 0.50 | 5 in 2015-06-15 | 0.11 lb |
| Golden Shiner | 0.42 | 5 in 2015-06-15 | 0.09 lb |
| Largemouth Bass | 0.17 | 6 in 2015-06-15 | 0.16 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.
Yellow Perch
White Sucker
Northern Pike
Pumpkinseed
From the 2015-06-15 survey
Manomin Lake is located approximately 16 miles NE of Ely in the BWCAW. This shallow lake has shorelines that are covered with dense conifers growing near the water's edge. The rocky shoreline quickly changes to a muck bottom and aquatic plants are common. There are two designated USFS campsites present and they appear…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Manomin Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — ManominFisheries Lake Survey · MN DNR LakeFinder
Lake Details
Max depth
18 ft
Surface area
409 acres
Shoreline
6.7 mi
Littoral zone
99%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
2 sq mi
HydroLAKES / HydroSHEDS
Elevation
1,329 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Stays via Stay22
Stays near Manomin Lake
Compare lakeside cabins, hotels, and vacation rentals near Manomin Lake in Lake 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 Manomin Lake
Prices for Oct 9–11, 4 adults. Change dates on the map below.
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Planning a whole trip? See where to stay at Minnesota’s top lakes →
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Fish Species
Click a species to see every lake where it is documented.
Fishing Manomin Lake
Water Quality Trend: Worsening
Based on 5 years of monitoring (2020–2025).
Water clarity
Worsening5 years
Nearby Lakes in Lake County
Frequently asked questions about Manomin Lake
Where is Manomin Lake?
- Manomin Lake is a lake in Lake County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Manomin Lake?
- Manomin Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 2 ft visibility. Maximum depth: 18 ft. Surface area: 409.05 acres.
Is Manomin Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Manomin Lake?
- Manomin Lake has a maximum depth of 18 feet. The lake covers 409.05 acres.
What fish are in Manomin Lake?
- Fish species found in Manomin Lake include largemouth bass, northern pike, pumpkinseed, white sucker, yellow perch. Manomin Lake is located in Lake County, Minnesota.
What did the DNR fisheries survey find at Manomin Lake?
- Minnesota DNR's Standard Survey on June 15, 2015 caught 0.67 northern pike per gill net at Manomin Lake. Length samples in the latest survey that recorded them ran 15–18 inches. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Manomin Lake’s water-quality measurements separately, and the water-quality trend over 5 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Manomin Lake?
- Public access to Manomin 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 Manomin Lake across LakeQuality
Depth, room, public access, and the state wake-sport rules
Fish species and the cleanest lakes across Minnesota
Fish species and best lakes in Lake County
Species activity outlook by water temperature and season
Where to stay at Minnesota's top lakes, each with its readings
Lakes in the Lake Superior Basin (MN+WI), ranked by water quality
Minnesota's cleanest lakes, ranked on agency measurements
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Where this data comes from
1 measurement from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA1 sample · 2024
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