River CA

South Fork Rubicon River

California • 38.9616, -120.3614

Hydrography profile Updated Jan 19, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

16 mi

26 km

Elevation

7,559′ → 3,539′

4,020 ft drop

Stream Order

Large River

Slope

4.71%

248.8 ft/mi

Drainage

56 mi²

144 km²

Avg Flow

185 cfs

1.5 mph velocity

Path to Mouth

175 mi

281 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