Cascade River is a scenic waterway located in the state of Washington, flowing through the North Cascades National Park. It is known for its stunning views, with clear blue waters cascading over rocks and through lush forests, making it a popular destination for hikers and nature enthusiasts. The river is approximately 20 miles long and is fed by several tributaries, including Cascade Pass and Stehekin River. It eventually joins the Skagit River, contributing to the region's rich ecosystem and providing habitat for various wildlife species, including salmon and bears.