River WA

The Stillwater

Washington • 47.1678, -123.3475

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

6 mi

9 km

Elevation

315′ → 265′

50 ft drop

Stream Order

Medium River

Slope

0.16%

8.5 ft/mi

Drainage

21 mi²

54 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

66 mi

106 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