Brule Lake
Iron County, Michigan234 acresView mapDirections
EGLE publishes the water-quality measurements for Brule Lake. Here is what has been measured.
- 20 ft max depth
- Public access
- Limited data
Brule Lake in Iron County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 5 ft visibility. Phosphorus: 22 µg/L. Maximum depth: 20 ft. Surface area: 233.5 acres.
Free interactive depth-contour map of Brule Lake, reaching a maximum surveyed depth of 20 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
Brule Lake is a 234-acre lake in Iron County, Michigan with a maximum depth of 20 feet. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2023-09-11. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Brule 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 Brule Lake
These are the measurements EGLE publishes for Brule 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 ft. Phosphorus 22 µg/L. TSI 51.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 22µg/L | Measured, not scored 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. | 51 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Brule Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
20 ft
Surface area
234 acres
Public access
Yes
Listed by EGLE
Lake Size & Watershed
Watershed (drainage) area
32 sq mi
HydroLAKES / HydroSHEDS
Shoreline
4 mi
HydroLAKES / HydroSHEDS
Elevation
1,549 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
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Fishing Brule Lake
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Frequently asked questions about Brule Lake
Where is Brule Lake?
- Brule 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 Brule Lake?
- Brule Lake in Iron County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 5 ft visibility. Phosphorus: 22 µg/L. Maximum depth: 20 ft. Surface area: 233.5 acres.
Is Brule Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Brule Lake?
- Brule Lake has a maximum depth of 20 feet. The lake covers 233.5 acres.
Can I fish at Brule Lake?
- Public access to Brule 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
8 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- Michigan EGLE - MiCorps
21MICH_MICORPS8 samples · 2023
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.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)