Creek CA

Chalone Creek

California • 36.4295, -121.1642

Reviewed mapped path Updated Dec 30, 2025

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

19 mi

31 km

Elevation

1,071′ → 209′

863 ft drop

Stream Order

Large River

Slope

0.86%

45.2 ft/mi

Drainage

141 mi²

364 km²

Avg Flow

-- cfs

1.4 mph velocity

Path to Mouth

75 mi

121 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

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

Detailed hydrology

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