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Walla Walla Expedition
The Walla Walla expeditions were two movements of Indigenous people from the Columbian Plateau to Alta California during the mid-nineteenth century. The original expedition was organized to gain sizable populations of cattle for native peoples that lived on Columbian Plateau. Among the prominent members was Walla Walla leader Piupiumaksmaks, his son Toayahnu, Garry of the Spokanes and Cayuse headman Tawatoy. The first expedition arrived at New Helvetia in 1844. The Natives purchased several hundred cattle from American and Mexican settlers. However, a confrontation erupted with Toayahnu being killed by an American. The Plateau natives then escaped from the colony, losing all of their purchased livestock. Toayahnu's death angered many indigenous people across multiple Columbian Plateau nations and for a while it was considered to exact revenge on John Sutter's colony with a mixed military force of 2,000. The Nez Perce Ellis was sent to Fort Vancouver as a delegate of the aggri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbian Plateau
The Columbia Plateau is a geologic and geographic region that lies across parts of the U.S. states of Washington, Oregon, and Idaho. It is a wide flood basalt plateau between the Cascade Range and the Rocky Mountains, cut through by the Columbia River. Geology During late Miocene and early Pliocene times, a flood basalt engulfed about of the Pacific Northwest, forming a large igneous province. Over a period of perhaps 10 to 15 million years, lava flow after lava flow poured out, ultimately accumulating to a thickness of more than 6,000 feet (1.8 km). As the molten rock came to the surface, the Earth's crust gradually sank into the space left by the rising lava. The Columbia River Basalt Group consists of seven formations: The Steens Basalt, Imnaha Basalt, Grande Ronde Basalt, Picture Gorge Basalt, Prineville Basalt, Wanapum Basalt, and Saddle Mountains Basalt. Many of these formations are subdivided into formal and informal members and flows. The subsidence o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
