Editing Coahuila (section)

==Geography==

The [[Sierra Madre Oriental]] runs northwest to southeast through the State, and the higher elevations are home to the [[Sierra Madre Oriental pine-oak forests]]. The northernmost fingers of the Sierra Madre Oriental, the [[Sierra del Burro]] and the [[Sierra del Carmen]], reach to the border with the United States at the [[Rio Grande]].

East of the range, the land slopes gently toward the Rio Grande, and is drained by several rivers, including the [[Salado River, Mexico|Salado]] and its tributary, the Sabinas River. The [[Tamaulipan mezquital]], a [[deserts and xeric shrublands|dry shrubland]] [[ecoregion]], occupies the eastern portion of the State, and extends across the Rio Grande into southern Texas.

The portion of the State west of the Sierra Madre Oriental lies on the [[Mexican Plateau]], and is part of the [[Chihuahuan Desert]]. The [[Bolsón de Mapimí]] is a large [[endorheic basin]] which covers much of the western portion of the State and extends into adjacent portions of Chihuahua, Durango, and Zacatecas. The [[Nazas River]], which flows east from Durango, and the [[Aguanaval River]], which flows north from Zacatecas, empty into lakes in the Bolsón. [[Torreón]], the most populous city in the State, lies on the Nazas in the irrigated [[Laguna Region]], the ''(Comarca Lagunera)'', which straddles the border of Coahuila and Durango.

Coahuila contains two [[biosphere reserve]]s. [[Maderas del Carmen]] lies on the northern border of the State, and includes sections of the Chihuahuan desert and [[sky island]]s of pine-oak forest in the [[Sierra del Carmen]]. The springs, lakes, and wetlands of the [[Cuatro Ciénegas Basin]] lie west of Monclova on the west slope of the Sierra Madre.

Coahuila is largely arid or semi-arid, but the rivers of the State support extensive irrigated agriculture, particularly [[cotton]]. The [[Parras]] district in the southern part of the State produces wines and brandies. The [[Sierra Madre Oriental pine-oak forests|pine-oak forests]] of the Sierra Madre produce timber.

===Flora and fauna ===

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|colspan=8 style="background:#green; color:white; font-size:100%" align=center bgcolor="green"|'''Flora and fauna of Coahuila'''
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|align=center valign=center bgcolor="white"|[[File:Acer grandidentatum branches.jpg|120px]]
|align=center valign=center bgcolor="white"|[[File:Figa de moro 01.JPG|120px]]
|align=center valign=center bgcolor="white"|[[File:Singapore Botanic Gardens Cactus Garden 2.jpg|120px]]
|align=center valign=center bgcolor="white"|[[File:Cylindropuntia spinosior, with flower, Albuquerque.jpg|120px]]
|align=center valign=center bgcolor="white"|[[File:Pinus ponderosa 9681.JPG|120px]]
|-
|style="background:#e9e9e9;" align=center|''[[Acer grandidentatum]]''
|style="background:#e9e9e9;" align=center|''[[Opuntia ficus-indica]]''
|style="background:#e9e9e9;" align=center|''[[Echinocactus grusonii]]''
|style="background:#e9e9e9;" align=center|''[[Cylindropuntia imbricata]]''
|style="background:#e9e9e9;" align=center|''[[Pinus ponderosa]]''
|-
|align=center valign=center bgcolor="white"|[[File:Schwarzbär-Omega Park.jpg|125px]]
|align=center valign=center bgcolor="white"|[[File:MountainLion.jpg|125px]]
|align=center valign=center bgcolor="white"|[[File:Tamiasciurus douglasii 000.jpg|125px]]
|align=center valign=center bgcolor="white"|[[File:Cynomys ludovicianus.jpg|125px]]
|align=center valign=center bgcolor="white"|[[File:Aquila chrysaetos Flickr.jpg|125px]]
|-
|style="background:#e9e9e9;" align=center|''[[Ursus americanus]]''
|style="background:#e9e9e9;" align=center|''[[Puma concolor]]''
|style="background:#e9e9e9;" align=center|''[[Tamiasciurus fremonti]]''
|style="background:#e9e9e9;" align=center|''[[Cynomys ludovicianus]]''
|style="background:#e9e9e9;" align=center|''[[Aquila chrysaetos]]''
|-
|align=center valign=center bgcolor="white"|[[File:Wild Turkey.jpg|120px]]
|align=center valign=center bgcolor="white"|[[File:Northern_black-tailed_rattlesnake.jpg|120px]]
|align=center valign=center bgcolor="white"|[[File:Antilocapra americana.jpg|120px]]
|align=center valign=center bgcolor="white"|[[File:Deer running.jpg|120px]]
|align=center valign=center bgcolor="white"|[[File:Opossum with grapes.jpg|120px]]
|-
|style="background:#e9e9e9;" align=center|''[[Meleagris gallopavo]]''
|style="background:#e9e9e9;" align=center|''[[Crotalus molossus]]''
|style="background:#e9e9e9;" align=center|''[[Antilocapra americana]]''
|style="background:#e9e9e9;" align=center|''[[Odocoileus virginianus]]''
|style="background:#e9e9e9;" align=center|''[[Didelphis virginiana]]''
|-
|}
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