River CA

Cox Spillway

California • 39.3348, -121.6333

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

0 mi

0 km

Elevation

98′ → 63′

34 ft drop

Stream Order

Major River

Slope

7.01%

383.1 ft/mi

Drainage

3,504 mi²

9,076 km²

Avg Flow

-- cfs

3.0 mph velocity

Path to Mouth

7 mi

11 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