Lyon County Lake Quality
Nevada, 4 lakes, average grade D (Poor)
Only 4 lakes in Lyon County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county. On average, Lyon County lakes grade D, with phosphorus loading and reduced clarity showing up across most of the dataset.
The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is Lahontan Reservoir East of Silver Springs Beach (C); the most-stressed is Lahontan Reservoir Narrows Inlet (D).
Quick Answers for Lyon County
Planning a trip? Check special fishing regulations for Lahontan Reservoir East of Silver Springs Beach — or check the official Nevada fishing regulations.
All Lakes in Lyon County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Lahontan Reservoir East of Silver Springs Beach | C | - | 250 µg/L |
| 2 | Lahontan Reservoir Narrows Inlet | D | - | 380 µg/L |
| 3 | Lahontan Reservoir Fishermans Point | D | - | 360 µg/L |
| 4 | Lahontan Reservoir | D | - | 290 µg/L |
Other Counties in Nevada
See how Lyon County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 34 states.
Where to stay near Lyon County
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Source: EPA National Aquatic Resource Surveys, 2026.