River OR WA

Walla Walla River

Oregon • 46.0517, -118.3417

Length

56 mi

89 km

Elevation

1,355′ → 341′

1,014 ft drop

Stream Order

8

Major River

Slope

0.35%

18.3 ft/mi

Drainage

1,657 mi²

4,290 km²

Avg Flow

819 cfs

1.7 mph velocity

Path to Mouth

368 mi

593 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Data from USGS & NOAA for informational purposes only. More

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