Lower North Crow Reservoir is a mesotrophic lake in Laramie County, Wyoming. Water quality is graded B based on 2 sampling years through 2020. Compared to the 8 other monitored lakes in Laramie County, Lower North Crow Reservoir ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, Wyoming DNR, last sampled 2020-09-15. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 9.4 ft. Phosphorus level: 20 µg/L. Trophic State Index: 46.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9.4 ft | C |
| Phosphorus | 20 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 46 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lower North Crow Reservoir
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Fishing Lower North Crow Reservoir
Location
County Ranking
Ranked #4 of 9 lakes in Laramie County
Cleaner Lakes Within 30 Miles
Lower North Crow Reservoir holds Grade B. 3 nearby lakes hold higher grades.
- AGranite Springs ReservoirLaramie County · 3.6 mi · Higher grade (B → A)
- ACrystal ReservoirLaramie County · 4.4 mi · Higher grade (B → A)
- BNla LakeAlbany County · 23.3 mi · Higher overall water quality score
Nearby Lakes in Laramie County
Explore Lower North Crow Reservoir across LakeGrade
More Wyoming Lake Rankings
Other Grade B Lakes in Wyoming
Mesotrophic 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: 2020-09-15
Monitoring stations: 1