Eagle Lake
Kalkaska County, Michigan25 acresView mapDirections
Clarity, phosphorus, and algae all sit in the cleanest band for this region.
- Oligotrophic
- #3 of 13 in the county
- 20 ft max depth
Eagle Lake in Kalkaska County, Michigan has a water quality grade of A (Excellent). Water clarity: 18 ft visibility. Phosphorus: 10 µg/L. Chlorophyll-a (algae): 1.3 µg/L. Maximum depth: 20 ft. Surface area: 24.8 acres.
- Clarity
- 18 ft
- Max depth
- 20 ft
- Area
- 25 acres
- Type
- Oligotrophic
- Phosphorus
- 10 µg/L
- Chlorophyll-a
- 1.3 µg/L
- Trend
- → Stable
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Eagle Lake is a 25-acre cold, clear oligotrophic lake in Kalkaska County, Michigan with a maximum depth of 20 feet. Water quality is graded A based on 2 sampling years through 2023. Water clarity is improving over recent sampling years. The lake supports 5 documented fish species including Bluntnose minnow, Largemouth bass, and Pumpkinseed. Compared to the 12 other monitored lakes in Kalkaska County, Eagle Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2023-09-24. Grade methodology: LakeQuality methodology.
What Eagle Lake is good for
From access and monitoring records, not editorial picks.
- Clear water18 ft of visibility
- Fishing5 species recorded
Swimming Safety
Grade onlyLow algae
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: A (Excellent)
Crystal clear, you can see 18 ft down. Phosphorus 10 µg/L. Chlorophyll-a 1.3 µg/L. TSI 35. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 18 ft | Not graded |
| Phosphorus | 10 µg/L | Good |
| Chlorophyll-a (Algae) | 1.3 µg/L | Good |
| Trophic State Index (TSI) | 35 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 20 ft |
| Surface Area | 25 acres |
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Eagle Lake
Water Quality Trend: → Stable
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.808 m/yr | 7 |
| Phosphorus | → Stable | -0.02 µg/L/yr | 7 |
| Chlorophyll-a | ↓ Declining | +0.09 µg/L/yr | 7 |
County Ranking
Ranked #3 of 13 lakes in Kalkaska County
Nearby Lakes in Kalkaska County
Frequently asked questions about Eagle Lake
Where is Eagle Lake?
- Eagle Lake is a lake in Kalkaska County, Michigan. LakeQuality grades it A for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Eagle Lake?
- Eagle Lake in Kalkaska County, Michigan has a water quality grade of A (Excellent). Water clarity: 18 ft visibility. Phosphorus: 10 µg/L. Chlorophyll-a (algae): 1.3 µg/L. Maximum depth: 20 ft. Surface area: 24.8 acres.
Is Eagle Lake safe to swim in?
- The A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
How deep is Eagle Lake?
- Eagle Lake has a maximum depth of 20 feet. The lake covers 24.8 acres.
What fish are in Eagle Lake?
- Fish species found in Eagle Lake include Bluntnose minnow, Largemouth bass, Pumpkinseed, White sucker, Yellow perch. Eagle Lake is located in Kalkaska County, Michigan.
Explore Eagle Lake across LakeQuality
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Low nutrients, clear water. The letter is not a swimming clearance.
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Where this data comes from
118 measurements from 1 monitoring station, 2016–2023. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- Michigan EGLE - MiCorps
21MICH_MICORPS118 samples · 2016–2023
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.