The Hoh River is a river located in the Olympic National Park in Washington State, USA. It flows approximately 56 miles (90 kilometers) from the Olympic Mountains to the Pacific Ocean. The river is known for its stunning scenery, including lush rainforests and diverse wildlife, making it a popular destination for hikers and nature enthusiasts. The Hoh River is fed by glacial meltwater, which contributes to its clear blue color. It is also part of the Hoh Rain Forest, one of the largest temperate rainforests in the United States. This unique ecosystem supports various plant and animal species, including the endangered Northern Spotted Owl.