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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 .
Pacific Coast Ranges: Cascade-Sierra Mountains Northern Cascade Mountains Middle Cascade Mountains Southern Cascade Mountains Sierra Nevada: Pacific Border province: Aleutian Islands: Boundary Ranges: Puget Trough: Olympic Mountains: Oregon Coast Range: Klamath Mountains: California Trough: California Coast Ranges: Transverse Ranges (Los ...
The Cascade-Sierra province is a physiographic region of mountains in the western United States, east and adjacent to Pacific Border province and west and adjacent to the Basin and Range Province (in the south) and Columbia Plateau Province (in the north).
The region was volcanically active from approximately 35 to 17 million years ago. The province is characterized as an older, deeply eroded volcanic range lying west of the more recent High Cascades. The Western Cascades range in elevation from 1,700 feet (520 m) on the western margin to 5,800 feet (1,800 m) on the eastern margin.
The North Cascades include various protected areas. Chief among the areas in Washington is North Cascades National Park, occupying much of the area between Mount Baker and the Cascade divide. Contiguous with the Park are Ross Lake National Recreation Area and Lake Chelan National Recreation Area. Designated wilderness areas in the range include:
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 water vapor rises into the pliable mantle above the subducting plate, causing some of the mantle to melt. This newly formed magma rises toward the Earth's surface to erupt, forming a chain of volcanoes (the Cascade Range) above the subduction zone. [4] Geological map of the Cascade Range. Yellow indicates earthquakes, black lines indicate ...
In the United States, another major feature of the Cordillera is the Columbia Plateau, located north of California between the Cascade Range – which is a northern extension of the Sierra Nevada [17] – and the Rocky Mountains. In Mexico, the Sierra Madre Occidental, and the Sierra Madre Oriental further east, surround the Mexican Plateau.