The Chuckanut Mountains were formed by the folding of the Chuckanut Formation (which is predominantly made up of layers of 55-million-year-old sandstone, conglomerate, shale, and bituminous and sub-bituminous coal) and the later Huntingdon Formation (predominantly shale and sandstone) on top, as well as an exposed section of pre-Jurassic-age phyllite
Walla_Walla (en.wikivoyage.org) Known for its funny name and its famous Sweet Onions, Walla Walla in the Columbia River Plateau of Washington State is a pleasant stop with a charming downtown and booming wine industry.