Miners Lake is a mesotrophic lake in Alger County, Michigan. Water quality is graded B based on 2 sampling years through 2024. Overall water quality is declining over recent sampling years. Compared to the 12 other monitored lakes in Alger County, Miners Lake ranks #12 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2024-08-26. Grade methodology: LakeGrade methodology.
Watch Miners Lake water quality
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Murky, only visible to about 6.2 ft. Phosphorus level: 18.9 µg/L. Trophic State Index: 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.2 ft | D |
| Phosphorus | 18.9 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Miners Lake
Compare lakeside cabins, hotels, and vacation rentals near Miners Lake in Alger County, Michigan — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Fishing Miners Lake
Water Quality Trend: ↓ Declining
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.001 m/yr | 5 |
| Phosphorus | ↓ Declining | +2.62 µg/L/yr | 5 |
Water Temperature
Miners Lake averages about 59°F at the surface in summer, usually warmest in Jul (about 61°F) and coldest in Jun (about 56°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 602 field readings (2010–2024) via the EPA Water Quality Portal. See the full Miners Lake water temperature breakdown →
Location & Depth Map
Free interactive depth-contour map of Miners Lake, reaching a maximum surveyed depth of 15 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
County Ranking
Ranked #12 of 13 lakes in Alger County
Cleaner Lakes Within 30 Miles
Miners Lake holds Grade B. 3 nearby lakes hold higher grades.
- ABeaver LakeAlger County · 11.6 mi · Higher grade (B → A)
- BLegion LakeAlger County · 9 mi · Higher overall water quality score
- BTrapper'S LakeAlger County · 12.9 mi · Higher overall water quality score
Nearby Lakes in Alger County
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Moderate nutrients, good water quality
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Other Grade B Lakes in Michigan
Marquette County · Clarity: 12.5 ft
Marquette County · Clarity: 12 ft
Marquette County · Clarity: 14.3 ft
Marquette County · Clarity: 11.8 ft
Charlevoix County · Clarity: 10 ft
Charlevoix County · Clarity: 10 ft
Mesotrophic Lakes in Michigan
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-08-26
Monitoring stations: 1