South Fork Coos River
| South Fork Coos River | |
|---|---|
Location of the mouth of the South Fork Coos River in Oregon | |
| Etymology | Indian name for a native tribe living near Coos Bay |
| Location | |
| Country | United States |
| State | Oregon |
| County | Coos |
| Physical characteristics | |
| Source | confluence of the Williams River with Tioga Creek |
| • location | eastern Coos County, Southern Oregon Coast Range |
| • coordinates | 43°19′04″N 123°48′32″W / 43.31778°N 123.80889°W |
| • elevation | 507 ft (155 m) |
| Mouth | Coos River |
• location | downstream of Dellwood |
• coordinates | 43°22′39″N 124°05′57″W / 43.37750°N 124.09917°W |
• elevation | 13 ft (4.0 m) |
| Length | 32 mi (51 km) |
| Discharge | |
| • minimum | 1 cu ft/s (0.028 m3/s) |
The South Fork Coos River is a tributary, about 32 miles (51 km) long, of the Coos River in the U.S. state of Oregon. Formed by the confluence of the Williams River and Tioga Creek, it begins in eastern Coos County near the Douglas County line and flows generally northwest through the Southern Oregon Coast Range. East of the city of Coos Bay, it joins the Millicoma River to form the Coos River. This larger river, only about 5 miles (8 km) long, empties into the eastern end of Coos Bay, which connects to the Pacific Ocean.