The Stillaguamish River is a river located in the state of Washington, flowing through Snohomish County. It originates in the Cascade Mountains and travels approximately 29 miles before emptying into Port Susan and ultimately the Puget Sound. The river is known for its scenic beauty and diverse ecosystems. The Stillaguamish River is an important habitat for various fish species, including salmon and steelhead. It also supports recreational activities such as fishing, kayaking, and hiking along its banks. The river plays a vital role in the local environment and economy, providing resources and opportunities for residents and visitors alike.