Mount Saint Helena
| Use attributes for filter ! | |
| Elevation | 1323 |
|---|---|
| Prominence | 556 m |
| First ascent | 1841 |
| Topo map | USGS |
| Mountain range | Mayacamas Mountains |
| Parent range | Mayacamas Mountains |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2342306 |
About Mount Saint Helena
Mount Saint Helena is a peak in the Mayacamas Mountains with flanks in Napa, Sonoma, and Lake counties of California. Composed of uplifted 2. 4-million-year-old volcanic rocks from the Clear Lake Volcanic Field, it is one of the few mountains in the San Francisco Bay Area to receive any snowfall during the winter.
