Loon Lake is a cold, clear oligotrophic lake in Oscoda County, Michigan. Water quality is graded B based on 1 sampling years through 2022. The lake supports 13 documented fish species including Black bullhead, Blackchin shiner, and Bluegill. Compared to the 2 other monitored lakes in Oscoda County, Loon Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2022-09-09. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 14.5 ft. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 14.5 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
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Fish Species
Click a species to see every graded lake where it is documented.
Fishing Loon Lake
Location & Depth Map
Free interactive depth-contour map of Loon Lake, reaching a maximum surveyed depth of 50 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
County Ranking
Ranked #3 of 3 lakes in Oscoda County
Cleaner Lakes Within 30 Miles
Loon Lake holds Grade B. 2 nearby lakes hold higher grades.
Nearby Lakes in Oscoda County
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Other Grade B Lakes in Michigan
Ogemaw County · Clarity: 10 ft
Iosco County · Clarity: 12 ft
Iosco County · Clarity: 13 ft
Crawford County · Clarity: 6.5 ft
Montmorency County · Clarity: 13 ft
Gladwin County · Clarity: 10 ft
Oligotrophic Lakes in Michigan
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
Most recent sample: 2022-09-09
Monitoring stations: 1