The Santiam River is a major river located in the state of Oregon, USA. It flows for approximately 140 miles, starting in the Cascade Mountains and eventually joining the Willamette River. The river is known for its scenic beauty and recreational opportunities, including fishing, kayaking, and hiking along its banks. The Santiam River is divided into two main forks: the North Santiam River and the South Santiam River. Both forks are popular destinations for outdoor enthusiasts and provide habitats for various wildlife species. The river plays a crucial role in the local ecosystem and supports the surrounding communities through water supply and recreation.