South Fork Coquille River

South Fork Coquille River
The lower tier of Coquille River Falls at low water
Location of the mouth of the South Fork Coquille River in Oregon
Location
Country	United States
State	Oregon
Region	Coos County
Cities	Powers, Broadbent, Myrtle Point
Physical characteristics
Source	Southern Oregon Coast Range
• location	Unnamed ridge, north of Mount Bolivar
• coordinates	42°50′24″N 123°52′30″W / 42.84000°N 123.87500°W / 42.84000; -123.87500[1]
• elevation	3,501 ft (1,067 m)[2]
Mouth	Coquille River
• location	Myrtle Point
• coordinates	43°04′49″N 124°08′29″W / 43.08028°N 124.14139°W / 43.08028; -124.14139[1]
• elevation	13 ft (4.0 m)[1]
Length	62.8 mi (101.1 km)
Basin size	288 sq mi (750 km2)[3]
Discharge
• location	Powers[4]
• average	778 cu ft/s (22.0 m3/s)[5]
• minimum	7.2 cu ft/s (0.20 m3/s)
• maximum	48,900 cu ft/s (1,380 m3/s)
Basin features
Tributaries
• left	Johnson Creek, Salmon Creek, Dement Creek, Catching Creek
• right	Wooden Rock Creek, Coal Creek, Woodward Creek, Middle Fork Coquille River

The South Fork Coquille River is the longest tributary of the Coquille River in coastal Oregon in the United States.^[3] From its headwaters in the Southern Oregon Coast Range, the river flows northwest to join the North Fork Coquille River at Myrtle Point, forming the main stem Coquille.^[6] The South Fork is about 63 miles (101 km) long, and its watershed drains roughly 288 square miles (750 km²) of rural Coos County.^[3]