Coast Ranges

Coast Ranges, series of mountain ranges along the Pacific coast of North America, extending from SE Alaska to Baja California from 2,000 to 20,000 ft (610–6,100 m) high. The ranges include the St. Elias Mts. in SE Alaska and SW Yukon, which have the highest elevations a partially submerged portion that forms the islands off the coast of SE Alaska and British Columbia the Olympic Mts. in Washington the Coast Ranges in Oregon the Klamath Mts., Coast Ranges, and Los Angeles Ranges in California and the Peninsular Range in Baja California. The Coast Ranges are rugged, geologically young mountains formed by faulting and folding and are composed mainly of granitic rock the northern third is glaciated. N of San Francisco the ranges are humid and thickly forested the southern parts are dry and covered with brush and grass. Lumbering, mining, and tourism are important.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

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