River WA

Cooper River

Washington • 47.4534, -121.1941

Length

15 mi

24 km

Elevation

5,345′ → 2,338′

3,006 ft drop

Stream Order

5

Medium River

Slope

3.89%

205.5 ft/mi

Drainage

37 mi²

95 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

558 mi

898 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Data from USGS & NOAA for informational purposes only. More

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