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The North Cascades are a section of the Cascade Range of western North America. They span the border between the Canadian province of British Columbia and the U.S. state of Washington and are officially named in the U.S. and Canada [ 1 ] as the Cascade Mountains . [ 2 ]
The geography of the North Cascades describes a range of rugged mountains in British Columbia, Canada and Washington, United States. In Canada, the range is officially named the Cascade Mountains but is commonly referred to as the Canadian Cascades.
North Cascades/Canadian Cascades The Okanagan Range or Okanogan Range is a small subrange of the Cascade Range straddling the border between British Columbia and Washington south of the Similkameen River on the inland side of the range.
Paralleling the Canadian Cascade Arc 150 km (93 mi) to the northeast is an area composed of minor basaltic lava flows. [31] This zone, known as the Chilcotin Group, formed as a result of back-arc basin volcanism behind the Canadian Cascade Arc, in response to ongoing Cascadia subduction. Volcanic activity began 31 million years ago, but most of ...
The North Cascades are a subrange of the Cascade Range System, the official name of the Canadian section is the Cascade Mountains. For the North Cascades section in Washington state, see Category: North Cascades of Washington (state) .
The North Cascades features some of the most rugged topography in the Cascade Range with craggy peaks, ridges, and deep glacial valleys.Geological events occurring many years ago created the diverse topography and drastic elevation changes over the Cascade Range leading to the various climate differences.
Of the three subranges of the Canadian Cascades—the Skagit, Hozameen, and Okanagan ranges—the Skagit is the most mountainous. It continues north to the Fraser River, sometimes using different local names. The Hope Mountains, and the "Anderson River Group" are separated from the main Skagit Range by distinct natural boundaries, but are ...
The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as many of those in the North Cascades , and the notable volcanoes known as the High Cascades .