Washington, state, United States: The Cascades

The Cascades

Washington's boldest physiographic feature is the lofty Cascade Range, rising to 14,410 ft (4,392 m) at Mt. Rainier. The Cascades block the eastward movement of warm ocean air from the Alaska Current, causing abundant rainfall to the west and semiarid conditions to the east. The valleys of the Wenatchee, Yakima, and other rivers flowing eastward from the mountains are important irrigated farming areas, while the Cascades themselves are the site of North Cascades and Mount Rainier national parks, Mount St. Helens National Volcanic Monument, several national forests, and noted ski resorts. Their scenery is a major tourist attraction. Mount St. Helens, on the west slope near the Oregon boundary, is the most recent (1980) Cascade peak to erupt.

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