Is Upper Little York Lake Safe for Swimming?
Upper Little York Lake in Cortland County, Wisconsin has a water quality grade of B (Good). Good for swimming, clear water with low algae levels. Water clarity: 11 ft visibility. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | B (Good) |
| Water Clarity (Secchi Depth) | 11 ft |
| Location | Cortland County, Wisconsin |
How does Upper Little York Lake compare?
With an overall water quality grade of B, Upper Little York Lake matches or beats the Wisconsin state average of Grade B. It ranks #2 of 4 lakes in Cortland County by water quality score.
Water clarity (Secchi depth) sits at 11 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.