River CA

North Fork Big River

California • 39.3498, -123.5185

Reviewed mapped path Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

15 mi

24 km

Elevation

1,338′ → 158′

1,179 ft drop

Stream Order

Large River

Slope

1.51%

79.5 ft/mi

Drainage

44 mi²

113 km²

Avg Flow

-- cfs

1.4 mph velocity

Path to Mouth

42 mi

68 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

Data from EPA Water Quality Portal (USGS, EPA, state agencies).

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Data from USGS & NOAA for informational purposes only. Read source and safety notes

Rain Radar