Crescent Lake is a cold, clear oligotrophic lake in Klamath County, Oregon. Water quality is graded A based on 2 sampling years through 2024. Compared to the 19 other monitored lakes in Klamath County, Crescent Lake ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, Oregon DNR, last sampled 2024-07-24. 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 51.7 ft down. Chlorophyll-a: 0.5 µg/L. Trophic State Index: 22.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 51.7 ft | A |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 0.5 µg/L | A |
| Trophic State Index (TSI) | 22 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Crescent Lake
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Fishing Crescent Lake
Location
County Ranking
Ranked #5 of 20 lakes in Klamath County
Nearby Lakes in Klamath County
Explore Crescent Lake across LakeGrade
More Oregon Lake Rankings
Other Grade A Lakes in Oregon
Oligotrophic Lakes in Oregon
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: 2024-07-24
Monitoring stations: 1