Stillaguamish River

Stillaguamish River
The South Fork of the Stillaguamish River near Verlot
Stillaguamish River is located in Washington (state)
Stillaguamish River
Location of the mouth of the Stillaguamish River in Washington
Stillaguamish River is located in the United States
Stillaguamish River
Stillaguamish River (the United States)
Location
CountryUnited States
StateWashington
Physical characteristics
SourceNorth Cascades
 • coordinates48°12′14″N 122°7′38″W / 48.20389°N 122.12722°W / 48.20389; -122.12722[1]
MouthPuget Sound
 • location
Port Susan
 • coordinates
48°14′18″N 122°22′38″W / 48.23833°N 122.37722°W / 48.23833; -122.37722[1]
 • elevation
0 m (0 ft)
Length67 mi (108 km)[2]
Basin size700 sq mi (1,800 km2)

The Stillaguamish River is a river in the northwestern region of the U.S. state of Washington. It is mainly composed of two forks, the longer North Fork Stillaguamish (45 miles (72 km)) and the South Fork Stillaguamish. The two forks join near Arlington. From there the Stillaguamish River proper flows for 22 miles (35 km) to Puget Sound. The river's watershed drains part of the Cascade Range north of Seattle.