Tucannon River
General data
- Name: Tucannon River
- Water system: Columbia River
- Water type: River
- Progression: Snake River (Columbia River tributary) -> Lake Wallula -> Columbia River -> Columbia River Estuary -> Pacific Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
The Tucannon River is a tributary of the Snake River in the U.S. state of Washington.
It flows generally northwest from headwaters in the Blue Mountains of southeastern Washington to meet the Snake 4 miles (6 km) upstream from Lyons Ferry Park and the mouth of the Palouse River. The Tucannon is about 62 miles (100 km) long.
Part of the upper river flows through the Wenaha–Tucannon Wilderness.
