Long Lake
Gogebic County, Michigan172 acresView mapDirections
EGLE publishes the water-quality measurements for Long Lake. Here is what has been measured.
- 60 ft max depth
- Limited data
Long Lake in Gogebic County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 12 ft visibility. Maximum depth: 60 ft. Surface area: 172.2 acres.
Free interactive depth-contour map of Long Lake, reaching a maximum surveyed depth of 60 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
Long Lake is a 172-acre lake in Gogebic County, Michigan with a maximum depth of 60 feet. Overall water quality is improving over recent sampling years. The lake supports 40 documented fish species including Blackchin shiner, Blacknose shiner, and Blackside darter.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2021-09-15. Methodology: how these readings are compared.
What Long Lake is good for
From access and monitoring records, not editorial picks.
- Clear water12 ft of visibility
- Fishing40 species recorded
- Deep water60 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Long 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 Long Lake
These are the measurements EGLE publishes for Long 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 12 ft. TSI 41.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 12ft | 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. | 41 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Long Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
60 ft
Surface area
172 acres
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Fish Species
Click a species to see every lake where it is documented.
Fishing Long Lake
Water Quality Trend: Improving
Based on 7 years of monitoring (2016–2023).
Water clarity
Improving7 years
Phosphorus
Improving-0.63 µg/L/yr7 years
Chlorophyll-a
Worsening+2.4 µg/L/yr2 years
Nearby Lakes in Gogebic County
Frequently asked questions about Long Lake
Where is Long Lake?
- Long 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 Long Lake?
- Long Lake in Gogebic County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 12 ft visibility. Maximum depth: 60 ft. Surface area: 172.2 acres.
Is Long Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Long Lake?
- Long Lake has a maximum depth of 60 feet. The lake covers 172.2 acres.
What fish are in Long Lake?
- Fish species found in Long Lake include Blackchin shiner, Blacknose shiner, Blackside darter, Blackstripe topminnow, Bluegill, Bluntnose minnow, Brook silverside, Brown bullhead, Central mudminnow, Central stoneroller, Creek chub, Golden redhorse, Golden shiner, Grass pickerel, Green sunfish, Hornyhead chub, Iowa darter, Johnny darter, Lake herring, Lake whitefish, Largemouth bass, Longnose gar, Mimic shiner, Northern logperch, Northern longear sunfish, Northern pearl dace, Northern pike, Pumpkinseed, Rainbow trout, Rock bass, Sand shiner, Smallmouth bass, Spotted gar, Striped shiner, Walleye, Warmouth, Western banded killifish, White sucker, Yellow bullhead, Yellow perch. Long Lake is located in Gogebic County, Michigan.
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Where this data comes from
44 measurements from 1 monitoring station, 2016–2021. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS44 samples · 2016–2021
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.