Chehalis River, River system in southwestern Washington, United States
The Chehalis River is a river system in southwestern Washington that flows through forested hills and flat lowlands before reaching Grays Harbor on the Pacific coast. Several tributaries feed into it along the way, making it one of the larger river networks in the state.
Indigenous peoples, including the Chehalis tribe after whom the river is named, lived along its banks for centuries before European contact. When settlers arrived in the 19th century, they built towns and farms along the river, gradually changing how the land was used.
The river remains a place where local Native American tribes practice traditional fishing and hunting according to their treaty rights. These activities shape life along its banks and show how communities maintain their connection to the water.
The river can be reached at several points along its course, making it easy to plan a visit around hiking, fishing, or bird watching. Water levels can rise quickly during the rainy season, so it is worth checking conditions before you go.
The Chehalis drains the largest self-contained watershed in Washington state, meaning all the water that falls within its basin stays within the system. This makes it hydrologically separate from neighboring river networks, which is unusual for a river of its size in the region.
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