Tucannon River

Tucannon River
Confluence of the Tucannon with the Snake River
Location of the mouth of Tucannon River in Washington
EtymologyNez Perce place name for "digging", in this case the edible root of the camas
Location
CountryUnited States
StateWashington
CountyColumbia County, Garfield County
Physical characteristics
Sourcenear Diamond Peak
  locationBlue Mountains, Umatilla National Forest, Garfield County
  coordinates46°07′11″N 117°30′41″W / 46.11972°N 117.51139°W / 46.11972; -117.51139
  elevation6,189 ft (1,886 m)
MouthSnake River
  location
near Starbuck, Columbia County
  coordinates
46°33′28″N 118°10′35″W / 46.55778°N 118.17639°W / 46.55778; -118.17639
  elevation
541 ft (165 m)
Length62.3 mi (100.3 km)
Basin size502 sq mi (1,300 km2)
Discharge 
  locationnear Starbuck, 7.9 miles (12.7 km) from the mouth
  average170 cu ft/s (4.8 m3/s)
  minimum15 cu ft/s (0.42 m3/s)
  maximum7,980 cu ft/s (226 m3/s)

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.