is a region, or areal feature, along the U.S.-Mexico border
at the Arizona
and New Mexico
state line. The extreme southeast corner of Arizona and the southwest corner of New Mexico describe the general vicinity. It includes areas inside the U.S. states
of Arizona and New Mexico as well as the Mexican states
. Like Silicon Valley
or Hollywood, the borders of this area differ depending upon whom you ask to describe them. At this writing, some maps show only the United States portion as being inside the region.
The lowest elevations in this area are about 3,700 feet in the San Bernardino National Wildlife Refuge area. Highest elevation is roughly 8,500 feet above mean sea level (AMSL). Mountain ranges generally run north-south. Terrain is described as including desert shrub, Tobosa grassland, Ponderosa Pine
forest, and Douglas Fir
. Some cattle ranching takes place in the region. The geomorphic provinces
include Madrean and Chihuahuan desert
The name "Malpai", relates to a type of "desert pavement"
, formed by wind (eolian
) processes, and is called Malapai
The Borderlands are sometimes referred to by the name of a larger region encompassing Malpai Borderlands: Southwest Borderlands
. The name is sometimes misspelled Maipai
Borderlands. Some references describe it as being inside the Chihuahuan Desert.
Unofficial extents of the region
Papers on the region describe geographic features that partly define... Read More