Fourth Crow Wing Lake
Hubbard County, Minnesota434 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Fourth Crow Wing Lake. Here is what has been measured.
- Mesotrophic
- Impaired · Mercury
- 10 ft max depth
- Public access
- Limited data
Fourth Crow Wing Lake in Hubbard County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 8 ft visibility. Phosphorus: 19.5 µg/L. Chlorophyll-a (algae): 2.2 µg/L. Maximum depth: 10 ft. Surface area: 434.2 acres.
Minnesota DNR's Standard Survey on May 29, 2024 caught 0.50 walleye per gill net at Fourth Crow Wing Lake. DNR survey details →
Fourth Crow Wing Lake is a 434-acre mesotrophic lake in Hubbard County, Minnesota with a maximum depth of 10 feet (5-foot average). Water clarity is improving over recent sampling years. The lake supports 16 documented fish species including black crappie, bluegill, and bowfin (dogfish). Public access is available. Compared to the 67 other monitored lakes in Hubbard County, Fourth Crow Wing Lake ranks #42 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2020-09-16. Methodology: how these readings are compared.
Fourth Crow Wing Lake covers about 430 acres in Hubbard County. Vrbo is where to look for cabins and lake homes around Fourth Crow Wing Lake, and Booking.com and Expedia search hotels near the lake for your dates.
What Fourth Crow Wing Lake is good for
From access and monitoring records, not editorial picks.
- Fishing16 species recorded
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Fourth Crow Wing Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Fourth Crow Wing 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 Fourth Crow Wing Lake
These are the measurements Minnesota PCA publishes for Fourth Crow Wing Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Moderate clarity, visible to about 8 ft. Phosphorus 19.5 µg/L. Chlorophyll-a 2.2 µg/L. TSI 44.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 19.5µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 2.2µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 44 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Fourth Crow Wing Lake
Answers come straight from the public measurements and survey records on this page.
Minnesota DNR's Standard Survey on May 29, 2024 caught 0.50 walleye per gill net at Fourth Crow Wing Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Fourth Crow Wing Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is stable. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
9 surveys on file from MN DNR Fisheries. Most recent: 2024-05-29 (Standard Survey).
9 surveys on file · most recent 2024-05-29 (Standard Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Largemouth Bass | 38.42 | 6–17 in 2024-05-29 | 1.72 lb |
| Yellow Perch | 15.29 | 5–9 in 2024-05-29 | 0.21 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.
Largemouth Bass
Yellow Perch
From the 2024-05-29 survey
Fourth Crow Wing Lake is located eight miles south of Nevis in southern Hubbard County. Fourth Crow Wing is part of a chain of lakes running from Eleventh Crow Wing Lake at the headwaters, down to First Crow Wing Lake. Fourth Crow Wing Lake has a surface area of 441 acres and a maximum depth of 10 feet. A DNR-owned…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Fourth Crow Wing Lake. 3 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — Fourth Crow WingFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Fourth Crow Wing (1293)Aquatic Plant Report · MN DNR LakeFinder
- —Public Water Access Sites — Fourth Crow WingPublic Water Access Sites · MN DNR LakeFinder
Lake Details
Max depth
10 ft
Average depth
5 ft
Surface area
434 acres
Shoreline
4.8 mi
Public access
Yes
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
186 sq mi
HydroLAKES / HydroSHEDS
Elevation
1,352 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Stays via Stay22
Stays near Fourth Crow Wing Lake
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Top-rated places to stay near Fourth Crow Wing Lake
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Fish Species
Click a species to see every lake where it is documented.
Fishing Fourth Crow Wing Lake
- → Fourth Crow Wing Lake fishing: DNR survey catch rates, species & stocking
- → Fourth Crow Wing Lake fishing forecast & best times (species outlook + 14-day solunar calendar)
- → Fourth Crow Wing Lake fishing regulations (limits, seasons, special rules)
- → Is it safe to eat fish from Fourth Crow Wing Lake? (mercury & PFAS guide)
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Water Quality Trend: Stable
Based on 6 years of monitoring (2020–2025).
Water clarity
Improving6 years
Phosphorus
Stable-0.06 µg/L/yr5 years
Chlorophyll-a
Worsening+1.22 µg/L/yr5 years
EPA Impairment Status
Fourth Crow Wing Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN29-0078-00 · Official waterbody report
Nearby Lakes in Hubbard County
Frequently asked questions about Fourth Crow Wing Lake
Where is Fourth Crow Wing Lake?
- Fourth Crow Wing Lake is a lake in Hubbard County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Fourth Crow Wing Lake?
- Fourth Crow Wing Lake in Hubbard County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 8 ft visibility. Phosphorus: 19.5 µg/L. Chlorophyll-a (algae): 2.2 µg/L. Maximum depth: 10 ft. Surface area: 434.2 acres.
Is Fourth Crow Wing Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Fourth Crow Wing Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Fourth Crow Wing Lake?
- Fourth Crow Wing Lake has a maximum depth of 10 feet and an average depth of 5 feet. The lake covers 434.2 acres.
What fish are in Fourth Crow Wing Lake?
- Fish species found in Fourth Crow Wing Lake include black crappie, bluegill, bowfin (dogfish), brown bullhead, common carp, greater redhorse, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, rock bass, shorthead redhorse, walleye, white sucker, yellow bullhead, yellow perch. Fourth Crow Wing Lake is located in Hubbard County, Minnesota.
What did the DNR fisheries survey find at Fourth Crow Wing Lake?
- Minnesota DNR's Standard Survey on May 29, 2024 caught 0.50 walleye per gill net at Fourth Crow Wing Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Fourth Crow Wing Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is stable. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Fourth Crow Wing Lake?
- Public access to Fourth Crow Wing Lake is listed as yes on the lake record. 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 Fourth Crow Wing Lake across LakeQuality
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Fish species and best lakes in Hubbard County
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Where this data comes from
14 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA14 samples · 2020
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
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
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder