The Basin and Range Province is a vast physiographic region covering much of the inland Western United States and northwestern Mexico.It is defined by unique basin and range topography, characterized by abrupt changes in elevation, alternating between narrow faulted mountain chains and flat arid valleys or basins.The physiography of the province is the result of tectonic extension that …The Basin and Range Province is a vast geographic region in the west United States and northwest Mexico.Its topography has abrupt changes in height. It has narrow faulted mountain chains and flat arid valleys or basins.There are many ecoregions, but the lower part is mostly desert.. The physical geography (physiography) of the province was caused by extension and thinning of the lithosphere ...
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