Twin Lakes; Grayling Twp
Crawford County, WisconsinOligotrophic
Twin Lakes; Grayling Twp is a cold, clear oligotrophic lake in Crawford County, MI. Water quality is graded A based on 2 sampling years through 2022. The lake supports 7 documented fish species including Bluegill, Fathead minnow, and Golden shiner. Compared to the 5 other monitored lakes in Crawford County, Twin Lakes; Grayling Twp ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2022-09-09. Grade methodology: LakeGrade methodology.
Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Crystal clear, you can see 19 ft down. Chlorophyll-a: 4.5 µg/L. Trophic State Index: 40.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 19 ft | A |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 4.5 µg/L | A |
| Trophic State Index (TSI) | 40 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Fish Species
Click a species to see all Wisconsin and Minnesota lakes where it is found.
→ Best fishing times for Twin Lakes; Grayling Twp (14-day solunar calendar)
→ Is it safe to eat fish from Twin Lakes; Grayling Twp? (mercury & PFAS guide)
→ Twin Lakes; Grayling Twp fishing regulations (limits, seasons, special rules)
Location
County Ranking
Ranked #3 of 6 lakes in Crawford County
Nearby Lakes in Crawford County
More Wisconsin Lake Rankings
Other Grade A Lakes in Wisconsin
Mecosta County · Clarity: 12.8 ft
Benzie County · Clarity: 13.5 ft
Clare County · Clarity: 15 ft
Kalkaska County · Clarity: 16 ft
Gogebic County · Clarity: 18 ft
Iron County · Clarity: 16 ft
Oligotrophic Lakes in Wisconsin
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2022-09-09
Monitoring stations: 1