River WA

Sumas River

Washington • 48.9748, -122.2513

Length

39 mi

64 km

Elevation

112′ → 23′

89 ft drop

Stream Order

7

Large River

Slope

0.04%

2.3 ft/mi

Drainage

620 mi²

1,605 km²

Avg Flow

-- cfs

1.8 mph velocity

Path to Mouth

39 mi

63 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Data from USGS & NOAA for informational purposes only. More

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