River CA

Napa River

California • 38.5113, -122.4558

Length

58 mi

93 km

Elevation

3,720′ → 1′

3,719 ft drop

Stream Order

6

Large River

Slope

1.22%

64.3 ft/mi

Drainage

393 mi²

1,018 km²

Avg Flow

379 cfs

1.4 mph velocity

Path to Mouth

56 mi

90 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Data from USGS & NOAA for informational purposes only. More

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