| Southern Oregon Coast Range | |
|---|---|
.jpg) Cow Creek, a tributary of the South Umpqua River | |
| Highest point | |
| Peak | Bone Mountain |
| Elevation | 3,540 ft (1,080 m) |
| Coordinates | 42°54′58″N 123°51′00″W / 42.91611°N 123.85000°W |
| Dimensions | |
| Length | 55 mi (89 km) North-South |
| Geography | |
  Southern Oregon Coast Range | |
| Country | United States |
| State | Oregon |
| Parent range | Oregon Coast Range, Pacific Coast Ranges |
| Borders on | Central Oregon Coast Range and Klamath Mountains |
| Geology | |
| Rock age(s) | Paleocene and Eocene |
| Rock type(s) | volcanic and forearc basin |
The Southern Oregon Coast Range is the southernmost section of the Oregon Coast Range, in the Pacific Coast Ranges, located in the southwest portion of the state of Oregon, United States, roughly between the Umpqua River and the middle fork of the Coquille River, beyond which are the Klamath Mountains. To the east is the Umpqua Valley and to the west the Pacific Ocean. This approximately 55-mile (89 km)-long mountain range contains mountains as high as 3,547 feet (1,081 m) for Bone Mountain. The mountains are known locally in the Roseburg area as the Callahan Mountains, or simply as The Callahans.[1]