Rob Roy Reservoir is a cold, clear oligotrophic lake in Albany County, Wyoming. Water quality is graded A based on 2 sampling years through 2018. Compared to the 24 other monitored lakes in Albany County, Rob Roy Reservoir ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Wyoming DNR, last sampled 2018-09-05. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Good clarity, visible to about 11.2 ft. Phosphorus level: 10 µg/L. Trophic State Index: 40.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11.2 ft | B |
| Phosphorus | 10 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 40 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Rob Roy Reservoir
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Fishing Rob Roy Reservoir
Location
County Ranking
Ranked #1 of 25 lakes in Albany County
Nearby Lakes in Albany County
Explore Rob Roy Reservoir across LakeGrade
More Wyoming Lake Rankings
Other Grade A Lakes in Wyoming
Carbon County · Excellent
Carbon County · Clarity: 17.9 ft
Laramie County · Clarity: 11.8 ft
Laramie County · Clarity: 11.6 ft
Carbon County · Clarity: 17.1 ft
Carbon County · Excellent
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: 2018-09-05
Monitoring stations: 2