The Animas Valley is a lengthy and narrow, north–south long,

valley A valley is an elongated low area often running between hills or mountains, which will typically contain a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams ove ...

located in western

Hidalgo County, New Mexico Hidalgo County ( es, Condado de Hidalgo) is the southernmost county of the U.S. state of New Mexico. As of the 2010 census, the population was 4,894. The county seat and largest city is Lordsburg. A bill creating Hidalgo from the southern part ...

in the Bootheel Region; the extreme south of the valley lies in Sonora- Chihuahua, in the extreme northwest of the

Chihuahuan Desert The Chihuahuan Desert ( es, Desierto de Chihuahua, ) is a desert ecoregion designation covering parts of northern Mexico and the southwestern United States. It occupies much of far West Texas, the middle to lower Rio Grande Valley and the lo ...

, the large desert region of the north-central

Mexican Plateau The Central Mexican Plateau, also known as the Mexican Altiplano ( es, Altiplanicie Mexicana), is a large arid-to-semiarid plateau that occupies much of northern and central Mexico. Averaging above sea level, it extends from the United States b ...

and the Rio Grande valley and river system. The

Continental Divide of the Americas The Continental Divide of the Americas (also known as the Great Divide, the Western Divide or simply the Continental Divide; ) is the principal, and largely mountainous, hydrological divide of the Americas. The Continental Divide extends from t ...

forms the valley's eastern border in a series of

mountain ranges A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have arise ...

. The parallel valley eastwards on the eastern side of the Continental Divide is the slightly shorter, but also long and narrow

Playas Valley The Playas Valley is a lengthy and narrow 60-mi (97-km) long, valley located in Hidalgo County, New Mexico in the Bootheel Region; the extreme south of the valley lies in Chihuahua. Playas, NM is located in the northeast. The valley is noteworth ...

. Westwards of the narrow, lengthy and divided Peloncillo Mountains, are the two valleys in

Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...

, the San Simon and

San Bernardino Valley The San Bernardino Valley ( es, Valle de San Bernardino) is a valley in Southern California located at the south base of the Transverse Ranges. It is bordered on the north by the eastern San Gabriel Mountains and the San Bernardino Mountains; ...

s, both east of the

massif In geology, a massif ( or ) is a section of a planet's crust that is demarcated by faults or flexures. In the movement of the crust, a massif tends to retain its internal structure while being displaced as a whole. The term also refers to a ...

of the

Chiricahua Mountains The Chiricahua Mountains massif is a large mountain range in southeastern Arizona which is part of the Basin and Range province of the west and southwestern United States and northwest Mexico; the range is part of the Coronado National Forest. ...

and associated mountain ranges, which anchor the eastern half of

Cochise County Cochise County () is a county in the southeastern corner of the U.S. state of Arizona. It is named after the Native American chief Cochise. The population was 125,447 at the 2020 census. The county seat is Bisbee and the most populous city is ...

. Parts of this entire region with its mountain ridgelines, and mountaintops, and associated valleys are part of the

sky island Sky islands are isolated mountains surrounded by radically different lowland environments. The term originally referred to those found on the Mexican Plateau, and has extended to similarly isolated high-elevation forests. The isolation has s ...

region called the

Madrean Sky Islands The Madrean Sky Islands are enclaves of Madrean pine–oak woodlands, found at higher elevations in a complex of small mountain ranges in southern and southeastern Arizona, southwestern New Mexico, and northwestern Mexico. The sky islands are s ...

of Arizona–

New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ke ...

, and Sonora– Chihuahua, in the Sonoran and Chihuahuan Deserts.

Description

The Animas Valley is linear, north–south trending, surrounded by mountain ranges, and is part of the

Basin and Range Province 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 ...

of southwest North America. At the southern extremity of the valley straddling the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

and

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

border lies the

Pleistocene The Pleistocene ( , often referred to as the ''Ice age'') is the geological epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in ...

aged Lake Cloverdale The extreme north has the Lordsburg Mesa located northwest of Lordsburg and is on the northern perimeter of the Animas Valley, south of the west-flowing Gila River and the towns of Virden and Red Rock.

References

External links

*{{commons and category-inline
Animas Valley Watershed, US EPAShaded Relief Map, The Chiricahua and Peloncillo Mountains Region
Great Divide of North America New Mexico Bootheel Chihuahuan Desert Landforms of Hidalgo County, New Mexico Valleys of New Mexico Valleys of Mexico Landforms of Sonora Landforms of Chihuahua (state)