River WA

East Branch Elk River

Washington • 46.7893, -123.9391

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

4 mi

7 km

Elevation

266′ → 59′

207 ft drop

Stream Order

Large River

Slope

0.96%

50.6 ft/mi

Drainage

4 mi²

11 km²

Avg Flow

-- cfs

1.4 mph velocity

Path to Mouth

21 mi

33 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