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The Yakima River is a tributary of the Columbia River in south central and eastern Washington state, named for the indigenous Yakima people. The length of the river from headwaters to mouth is 214 miles (344 km) and is the longest river entirely in Washington state. The Yakima has an average drop of 9.85 feet per mile.
The Yakima River rises in the Cascade Rant at an elevation of 2449 feer at the Keechelus Dam on Keechelus Lake near Snoqualmie Pass which is close to Easton, Washington.
Yakima
Lewis and Clark mention in their journals that the Chin-nâm pam (or the Lower Snake River Chamnapam Nation) called the river Tapteete (Tâpe têtt), possibly from the French tape-tête, meaning head hit.
Yakima Information
Confluence with Primary:
46.252778, -119.230833
Source:
47.322222, -121.339167
Total Length:
214 miles
Geographical Region
Basin and Range
Ecoregion
Columbia Plateau Ecoregion
Major Tributaries:
(and other sites)
Tributaries Right:
Source: Keechelus Lake
Cabin Creek
Iron Horse Trail (two crossings)
Lake Easton, Easton Diversion Dam
Big Creek
Train Trestle Crossing
Umtanum Creek
Roza Creek
Roza Dam
Train Trestle Crossing
SH 823 crossing, End SH 823
SH 823 crossing, IH 82 Crossing
Naches River
SH 24 crossing
Toppenish Creek
Satus Creek
IH 82 Crossing, Prosser
Wanawish Dam (Horn Rapids Dam)
IH 182 crossing
Confluence with Primary: Columbia River @ Tri-Cities
Tributaries Left:
Source: Keechelus Lake
Iron Horse Trail (two crossings)
Lake Easton, Easton Diversion Dam
Cle Elum River
Teanaway River
Swauk Creek
Yakima Canyon Scenic Drive
Wilson Creek
Train Trestle Crossing
Umtanum Creek Recreation Site
Lmuma Creek and Recreation Site
Big Pines Recreation Site
Roza Creek Recreation Site
Roza Dam
Train Trestle Crossing
SH 823 crossing, End SH 823
SH 823 crossing, IH 82 Crossing
SH 24 crossing
IH 82 Crossing, Prosser
Wanawish Dam (Horn Rapids Dam)
IH 182 crossing
Confluence with Primary: Columbia River @ Tri-Cities
Ancient Steps:
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