Gun Lake is a cold, clear oligotrophic lake in Mason County, Michigan. Water quality is graded B based on 1 sampling years through 2021. The lake supports 17 documented fish species including Blacknose shiner, Bluntnose minnow, and Grass pickerel. Compared to the 7 other monitored lakes in Mason County, Gun Lake ranks #7 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2021-09-09. 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 ft. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 14 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Gun Lake
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Fish Species
Click a species to see every graded lake where it is documented.
Fishing Gun Lake
Location & Depth Map
Free interactive depth-contour map of Gun Lake, reaching a maximum surveyed depth of 22 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
County Ranking
Ranked #7 of 8 lakes in Mason County
Cleaner Lakes Within 30 Miles
Gun Lake holds Grade B. 2 nearby lakes hold higher grades.
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Other Grade B Lakes in Michigan
Lake County · Clarity: 14 ft
Lake County · Clarity: 14 ft
Manistee County · Clarity: 8 ft
Manistee County · Clarity: 13.8 ft
Manistee County · Clarity: 10 ft
Lake County · Clarity: 11 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: 2021-09-09
Monitoring stations: 1