Fremont Lake is a cold, clear oligotrophic lake in Sublette County, Wyoming. Water quality is graded A based on 2 sampling years through 2019. Compared to the 11 other monitored lakes in Sublette County, Fremont Lake ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, Wyoming DNR, last sampled 2019-09-10. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Crystal clear, you can see 42.8 ft down. Phosphorus level: 10 µg/L. Trophic State Index: 30.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 42.8 ft | A |
| Phosphorus | 10 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 30 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Fremont Lake
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Fishing Fremont Lake
Location
County Ranking
Ranked #5 of 12 lakes in Sublette County
Nearby Lakes in Sublette County
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More Wyoming Lake Rankings
Other Grade A Lakes in Wyoming
Fremont County · Clarity: 15.9 ft
Lincoln County · Clarity: 11.8 ft
Lincoln County · Clarity: 15 ft
Lincoln County · Clarity: 13.3 ft
Teton County · Clarity: 18.3 ft
Teton County · Clarity: 16.4 ft
Oligotrophic Lakes in Wyoming
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2019-09-10
Monitoring stations: 4