Marion Lake
Gogebic County, Michigan297 acresView mapDirections
EGLE publishes the water-quality measurements for Marion Lake. Here is what has been measured.
- Impaired · Mercury
- Public access
- Limited data
Marion Lake in Gogebic County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 6.5 ft visibility. Surface area: 297.2 acres.
Marion Lake is a 297-acre lake in Gogebic County, Michigan. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2017-09-13. Methodology: how these readings are compared.
What Marion Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Marion Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Marion 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 Marion Lake
These are the measurements EGLE publishes for Marion 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 6.5 ft. TSI 50.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 6.5ft | 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. | 50 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Marion Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
297 acres
Public access
Yes
Listed by EGLE
No bathymetric survey has been published for Marion Lake, so its depth is not documented here.
Recreation & Access
- Marion LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Stays near Marion Lake
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Fishing Marion Lake
EPA Impairment Status
Marion 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 MI040201020204-03 · Official waterbody report
Nearby Lakes in Gogebic County
Frequently asked questions about Marion Lake
Where is Marion Lake?
- Marion Lake is a lake in Gogebic County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Marion Lake?
- Marion Lake in Gogebic County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 6.5 ft visibility. Surface area: 297.2 acres.
Is Marion Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Marion Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Are there boat ramps on Marion Lake?
- Marion Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Marion Lake. Public access is listed as yes.
Can I fish at Marion Lake?
- Marion 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
13 measurements from 1 monitoring station, 2017. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS13 samples · 2017
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
Named boat-access points from the USGS National Boat Ramps inventory