The Sammamish River is a freshwater river located in the state of Washington, flowing approximately 14 miles from Lake Sammamish to Lake Washington. It serves as an important habitat for various fish species, including salmon and trout, and is a popular spot for recreational activities such as kayaking and fishing. The river is part of the Lake Washington watershed and plays a crucial role in the local ecosystem. It is surrounded by parks and trails, making it accessible for outdoor enthusiasts. The Sammamish River Trail runs alongside the river, providing scenic views and opportunities for walking and biking.