Clark Lake is a cold, clear oligotrophic lake in Gogebic County, Michigan. Water quality is graded A based on 1 sampling years through 2023. Overall water quality is declining over recent sampling years. The lake supports 1 documented fish species including Lake herring. Public access is available with 1 public boat landing. Compared to the 39 other monitored lakes in Gogebic County, Clark Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2023-09-06. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Crystal clear, you can see 15.7 ft down. Trophic State Index: 37.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 15.7 ft | A |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 37 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Clark Lake
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Fish Species
Click a species to see every graded lake where it is documented.
Fishing Clark Lake
Water Quality Trend: ↓ Declining
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -1.75 m/yr | 2 |
Recreation & Access
Location & Depth Map
Free interactive depth-contour map of Clark Lake, reaching a maximum surveyed depth of 74 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
County Ranking
Ranked #3 of 40 lakes in Gogebic County
Nearby Lakes in Gogebic County
Explore Clark Lake across LakeGrade
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Fish species and best lakes in Gogebic County
Species activity outlook by water temperature and season
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Low nutrients, clear water, excellent for swimming
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More records, surveys & data sources
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Data Sources
Water quality data from the EPA Water Quality Portal
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Public boat-access points from the USGS National Boat Ramps inventory
Most recent sample: 2023-09-06
Monitoring stations: 1