The South Fork (30 miles (48 km)) originates from the northern slopes of Del Campo Peak and Morning Star Peak in central Snohomish County, 20 miles (32 km) south of Darrington, and flows west and northwest by Silverton, Verlot, and Granite Falls.

citation

Wikipedia contributors. (2024, July 29). Stillaguamish River. In Wikipedia, The Free Encyclopedia. Retrieved August 22, 2024, from https://en.wikipedia.org/w/index.php?title=Stillaguamish_River&oldid=1237438472

Stillaguamish River (Wikipedia) 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.