Basin and Range Province

The Basin and Range Province is a vast physiographic region defined by a unique topographic expression. Basin and range topography is characterized by abrupt changes in elevation, alternating between narrow faulted mountain chains and flat arid valleys or basins. The region covers most of the western United States, extends into northwestern Mexico and is mostly desert, with numerous ecoregions. The physiography of the province is the result of tectonic extension that began around 17 Ma (million years ago) in Early Miocene time.

Clarence Dutton famously compared the many narrow parallel mountain ranges that distinguish the unique topography of the Basin and Range to an "army of caterpillars marching toward Mexico", which is a helpful way to visualize the overall appearance of the region. The Basin and Range province should not be confused with The Great Basin, which is a sub-section of the greater Basin and Range physiographic region defined by its unique hydrological characteristics (internal drainage).

Read more about Basin And Range Province:  Geography, Geology, Volcanism, Mineral Resources

Famous quotes containing the words range and/or province:

    Compared to football, baseball is almost an Oriental game, minimizing individual stardom, requiring a wide range of aggressive and defensive skills, and filled with long periods of inaction and irresolution. It has no time limitations. Football, on the other hand, has immediate goals, resolution on every single play, and a lot of violence—itself a highlight. It has clearly distinguishable hierarchies: heroes and drones.
    Jerry Mander, U.S. advertising executive, author. Four Arguments for the Elimination of Television, ch. 15, Morrow (1978)

    The dramatic art would appear to be rather a feminine art; it contains in itself all the artifices which belong to the province of woman: the desire to please, facility to express emotions and hide defects, and the faculty of assimilation which is the real essence of woman.
    Sarah Bernhardt (1845–1923)