Lake Desor
Keweenaw County, WisconsinMesotrophic
Lake Desor is a mesotrophic lake in Keweenaw County, MI. Water quality is graded B based on 2 sampling years through 2024. The lake supports 1 documented fish species including Lake whitefish. Compared to the 18 other monitored lakes in Keweenaw County, Lake Desor ranks #16 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2024-08-21. Grade methodology: LakeGrade methodology.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 7.8 ft. Phosphorus level: 22.7 µg/L. Trophic State Index: 48.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 7.8 ft | C |
| Phosphorus | 22.7 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
Fish Species
Click a species to see all Wisconsin and Minnesota lakes where it is found.
→ Best fishing times for Lake Desor (14-day solunar calendar)
→ Is it safe to eat fish from Lake Desor? (mercury & PFAS guide)
→ Lake Desor fishing regulations (limits, seasons, special rules)
Location
County Ranking
Ranked #16 of 19 lakes in Keweenaw County
Cleaner Lakes Within 30 Miles
Lake Desor holds Grade B. 5 nearby lakes hold higher grades.
- ASiskiwit LakeKeweenaw County · 8.8 mi · Higher grade (B → A)
- ALake HarveyKeweenaw County · 10.1 mi · Higher grade (B → A)
- BFeldtmann LakeKeweenaw County · 12.2 mi · Higher overall water quality score
- BBeaver LakeKeweenaw County · 12.7 mi · Higher overall water quality score
- BLake WhittleseyKeweenaw County · 13.6 mi · Higher overall water quality score
Nearby Lakes in Keweenaw County
More Wisconsin Lake Rankings
Other Grade B Lakes in Wisconsin
Lapeer County · Clarity: 9.5 ft
Livingston County · Clarity: 13 ft
Manistee County · Clarity: 11 ft
Lake County · Clarity: 14 ft
Cass County · Clarity: 10.5 ft
Genesee County · Clarity: 10 ft
Mesotrophic Lakes in Wisconsin
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-08-21
Monitoring stations: 1