Howell Mountains
| Howell Mountains | |
|---|---|
| (Mt. George Range) | |
Twin Sisters, seen here from Suisun Valley, is the highest summit in the Howell Mountains | |
| Highest point | |
| Peak | Twin Sisters |
| Elevation | 2,162 ft (659 m) |
| Geography | |
location of the Howell Mountains in California | |
| Country | United States |
| State | California |
| Counties | Napa County, Solano County |
| Range coordinates | 38°18′24″N 122°10′16″W / 38.3065802°N 122.1710817°W |
The Howell Mountains, which are also known as the Mt. George Range, are one of the California Coast Ranges. They divide the Suisun Valley on the east side, from Napa Valley on the west. Historically the southern part of the range has been referred to as both the Sierra de Suscol (Suscol Hills) and as the Sierra de Napa (Napa Hills).