哥伦比亚高原
![The Columbia Plateau covers much of the Columbia River Basalt Group, shown in green on this map. The Washington cities of Spokane, Yakima and Pasco, and the Oregon city of Pendleton, lie on the Columbia Plateau.](/Images/godic/202501/05/PacificNW_volcanics4020.png")
![](/Images/godic/202501/05/Basalt_Bluff_near_Wanapum_Dam,_WA4020.jpg")
![](/Images/godic/202501/05/Usa_edcp_relief_location_map4021.png")
![La provincia basáltica Río Columbia](/Images/godic/202501/05/Columbia_River_Flood-Basalt_Province4021.jpg")
哥伦比亚高原（英语：Columbia Plateau）是由美国华盛顿州、俄勒冈州和爱达荷州部分地区组成的一个地质学和地理学意义上的区域。 哥伦比亚高原是喀斯喀特山脉和落基山脉之间的一个由溢流玄武岩（flood basalt）构成的熔岩高原，它被哥伦比亚河从中间切断穿过。这一区域也被称为哥伦比亚流域（Columbia Basin）。
Columbia Plateau
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Columbia Plateau 哥伦比亚高原
![The Columbia Plateau covers much of the Columbia River Basalt Group, shown in green on this map. The Washington cities of Spokane, Yakima and Pasco, and the Oregon city of Pendleton, lie on the Columbia Plateau.](/Images/godic/202501/05/PacificNW_volcanics4021.png")
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. In one of various usages, the term "Columbia Basin" refers to more or less the same area as the Columbia Plateau.
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