Brevoort Lake
Mackinac County, Michigan4,314 acresView mapDirections
EGLE publishes the water-quality measurements for Brevoort Lake. Here is what has been measured.
- Public access
- Limited data
Brevoort Lake in Mackinac County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 10.5 ft visibility. Surface area: 4314 acres.
Brevoort Lake is a 4,314-acre lake in Mackinac County, Michigan. The lake supports 15 documented fish species including Bluegill, Bluntnose minnow, and Brown bullhead. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2016-08-25. Methodology: how these readings are compared.
What Brevoort Lake is good for
From access and monitoring records, not editorial picks.
- Clear water10.5 ft of visibility
- Boat launch1 documented ramp
- Fishing15 species recorded
- Big water4,314 acres
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Brevoort 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 Brevoort Lake
These are the measurements EGLE publishes for Brevoort Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 10.5 ft. TSI 43.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 10.5ft | 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. | 43 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Brevoort Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
4,314 acres
Public access
Yes
Listed by EGLE
No bathymetric survey has been published for Brevoort Lake, so its depth is not documented here.
Recreation & Access
- Dukes RoadPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Fish Species
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Fishing Brevoort Lake
Reservoir Info (USACE NID)
Brevoort Lake is a man-made reservoir impounded by the Brevoort Lake Dam (completed 1938), built primarily for recreation on the Brevoort River; earth-type dam, 10 ft tall and 656 ft long.
- Surface area
- 4,314 ac
- Normal storage
- 20,500 ac-ft
- Max storage
- 35,000 ac-ft
- Drainage area
- 51 sq mi
- Hazard class
- Low
- Owner
- USDA FS
All listed purposes: Recreation;Fish and Wildlife Pond.
Source: USACE National Inventory of Dams, NID ID MI00155 · Operator website
Nearby Lakes in Mackinac County
Frequently asked questions about Brevoort Lake
Where is Brevoort Lake?
- Brevoort Lake is a lake in Mackinac County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Brevoort Lake?
- Brevoort Lake in Mackinac County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 10.5 ft visibility. Surface area: 4314 acres.
Is Brevoort Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What fish are in Brevoort Lake?
- Fish species found in Brevoort Lake include Bluegill, Bluntnose minnow, Brown bullhead, Common shiner, Golden shiner, Iowa darter, Johnny darter, Lake herring, Largemouth bass, Mimic shiner, Northern logperch, Pumpkinseed, Rock bass, White sucker, Yellow perch. Brevoort Lake is located in Mackinac County, Michigan.
Are there boat ramps on Brevoort Lake?
- Brevoort Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Dukes Road. Public access is listed as yes.
Can I fish at Brevoort Lake?
- Brevoort Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. 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
10 measurements from 1 monitoring station, 2016. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS10 samples · 2016
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
Named boat-access points from the USGS National Boat Ramps inventory