Description: Flora and Fauna of Central Washington's Scenic Yakima River Canyon
Located on the Columbia plateau in Central Washington, the Yakima is the longest river entirely in Washington state, flowing 214 miles from Keechelus Lake to the Columbia river near West Richland. Millions of years ago, the Yakima was a slow, meandering river flowing through a flat basalt plain. Geologic pressure lifted and folded the basalt over many more millions of years. The Yakima River Canyon is a 20 mile stretch of the river between Ellensburg and Selah which was formed as three major ridges, Manasht
The Canyon Wildlife Flowers Trees and Shrubs Other Non-Flowering Plants Grasses Insects Arachnids How the Yakima River Canyon was formed
Ice age floods and Columbia River basalts