The Miocene Columbia River flood basalt province covers ~210,000 km2 of the Pacific Northwest of the United States, and forms part of a larger volcanic region that also includes contemporaneous silicic ... Google Books
Originally published: 2013
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The Columbia River Basin covers 258,000 square miles and includes parts of seven states and one Canadian province. In its 1,200 mile course to the ocean, ...
Jan 20, 2021 · Coursing southwest through north-central Washington State, the river skirts massive lava flows on the Columbia Plateau before turning southeast ...
May 17, 2024 · The Columbia flows from its source in Columbia Lake, at an elevation of 2,700 feet (820 metres), in British Columbia near the crest of the Rocky ...