Sierra Madre Occidental pine-oak forests

WWF Abstract

The Sierra Madre Occidental Mountains extend from west-central Mexico northwards, gradually becoming isolated peaks surrounded by the Sonoran and Chihuahuan Deserts in southern Arizona. Steep slopes, deep canyons (Copper Canyon is the deepest in North America), and tall cliffs shape the majesty of these mountains. In the northern extremes of this region, isolated mountain peaks project upwards, forming "sky islands" of pine-oak habitat high above the dry desert floor. There is a great diversity in pine and oak forests, from the big Douglas fir and pine forests in the highest elevations to the oak-grasslands mosaics at the lowest elevations. Twenty-seven species of conifer trees and 21 oak species have been recorded in these mountains, making them a center of diversity for these groups of trees. More than 300 species of birds make their homes in here, including the golden eagle, endangered thick-billed parrot, military macaw, and tufted jay.
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Ecozone:Nearctic
Biome:Tropical and Subtropical Coniferous Forests
Countries:Mexico, United States
Area:55,039,998 acres (22,273,897 hectares)
Species:All  Endangered  Invasive
Climate:View Climate Data
Land Use:View Land Use Data

Protected Areas

Chiricahua National Monument
Coronado National Monument National Memorial
Reserva de la Michilia Biosphere Reserve
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER