Winslow Lake
Iron County, Michigan259 acresView mapDirections
EGLE publishes the water-quality measurements for Winslow Lake. Here is what has been measured.
- Mesotrophic
- 25 ft max depth
- Public access
- Limited data
Winslow Lake in Iron County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 5.5 ft visibility. Phosphorus: 15 µg/L. Maximum depth: 25 ft. Surface area: 259.3 acres.
Winslow Lake is a 259-acre mesotrophic lake in Iron County, Michigan with a maximum depth of 25 feet. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available. Compared to the 20 other monitored lakes in Iron County, Winslow Lake ranks #17 for water quality.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2019-08-25. Methodology: how these readings are compared.
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. Check local advisories before you swim.
Whether Winslow Lake is safe to swim in today is a call for the Michigan Department of Environment, Great Lakes, and Energy (EGLE) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Winslow Lake
These are the measurements EGLE publishes for Winslow Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 5.5 ft. Phosphorus 15 µg/L. TSI 48.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5.5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 15µg/L | Good GoodFairPoor |
| 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. | 48 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Winslow Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
25 ft
Surface area
259 acres
Public access
Yes
Listed by EGLE
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Fishing Winslow Lake
Water quality readings over time
3 seasons of samples on record (2017–2019). Calling a direction takes at least 4 years of the same measurement.
Phosphorus
Worsening+1.5 µg/L/yr3 years
Nearby Lakes in Iron County
Frequently asked questions about Winslow Lake
Where is Winslow Lake?
- Winslow Lake is a lake in Iron County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Winslow Lake?
- Winslow Lake in Iron County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 5.5 ft visibility. Phosphorus: 15 µg/L. Maximum depth: 25 ft. Surface area: 259.3 acres.
Is Winslow Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Winslow Lake?
- Winslow Lake has a maximum depth of 25 feet. The lake covers 259.3 acres.
Can I fish at Winslow Lake?
- Public access to Winslow Lake is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by Michigan's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
13 measurements from 1 monitoring station, 2017–2019. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- Michigan EGLE - MiCorps
21MICH_MICORPS13 samples · 2017–2019
Analytical methods
- Phosphorus by Colorimetry
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.