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Map of the physiographic provinces of the lower 48 United States, showing the Pacific Border province (number 18). The Pacific Border province is a physiographic province of the Physiographic regions of the world physical geography system. [1]
USGS map colored by paleogeological areas and demarcating the sections of the U.S. physiographic regions: Laurentian Upland (area 1), Atlantic Plain (2-3), Appalachian Highlands (4-10), Interior Plains (11-13), Interior Highlands (14-15), Rocky Mountain System (16-19), Intermontane Plateaus (20-22), & Pacific Mountain System (23-25) The legend ...
The landforms of Earth are generally divided into physiographic regions, consisting of physiographic provinces, which in turn consist of physiographic sections, [1] [2] [3] though some others use different terminology, such as realms, regions and subregions. [4]
At its midsection between San Francisco, California and Denver, Colorado, the North American Cordillera is about 1,000 miles (1,600 km) wide, and its physiographic provinces at this midpoint are as follows, going from west to east: the Pacific Coast Ranges, the Central Valley, the Sierra Nevada, the Basin and Range Province (forming many narrow ...
English: The major physiographic provinces of the 48 conterminous United States. This map is based on public domain data from the USGS. Originator: Fenneman, N.M., and Johnson, D.W. Publication_Date: 1946 Title: Physiographic divisions of the conterminous U. S. Geospatial_Data_Presentation_Form: map Publication_Place: Washington, DC Publisher: USGS
Physiographically, they are a section of the larger Pacific Border province, which in turn is part of the larger Pacific Mountain System physiographic division. UNESCO has included the "California Coast Ranges Biosphere Reserve" in its Man and the Biosphere Programme of World Network of Biosphere Reserves since 1983. [2]
The Boundary Ranges, also known in the singular and as the Alaska Boundary Range, are the largest and most northerly subrange of the Coast Mountains.They begin at the Nass River, near the southern end of the Alaska Panhandle in the Canadian province of British Columbia and run to the Kelsall River, near the Chilkoot Pass, beyond which are the Alsek Ranges of the Saint Elias Mountains, and ...
That definition excludes the Sierra Nevada and Cascade Ranges, the Mojave, and Sonoran Deserts, [4] i.e. the Pacific Border province. The same term is used informally in Canada to refer to the Coast Mountains and adjoining inland ranges such as the Hazelton Mountains, and sometimes also the Saint Elias Mountains.