North Fork Feather River

North Fork Feather River
Freight train crossing the North Fork, 2017
Map of the Feather River drainage basin. The North Fork flows from Lassen Peak southward to Lake Oroville.
Location
CountryUnited States
StateCalifornia
RegionNorth Fork Feather Watershed
1,090 sq mi (2,800 km2), including the
West Fork but not East Branch Watershed
Physical characteristics
Source confluenceRice Creek (Feather River) & South Arm Rice Creek
  locationFeather River Meadows
MouthLake Oroville, North ArmA
Length70 mi (110 km)
Basin size2,100 sq mi (5,400 km2)
Discharge 
  locationmouth at north arm, Lake Oroville; max and min at Pulga
  average2,930 cu ft/s (83 m3/s)
  minimum5.4 cu ft/s (0.15 m3/s)
  maximum105,400 cu ft/s (2,980 m3/s)

The North Fork Feather River is a watercourse of the northern Sierra Nevada and southern Cascades in the U.S. state of California. It flows generally southwards from its headwaters near Lassen Peak to Lake Oroville, a reservoir formed by Oroville Dam in the foothills of the Sierra, where it runs into the Feather River. The river drains about 2,100 square miles (5,400 km2) of the western slope of the Sierras. By discharge, it is the largest tributary of the Feather.