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Sierra Madre Occidental Reference Libraries

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Arizona Pine Pinus arizonica
2014-04-18 10:05:00

Arizona pine (Pinus arizonica) is found in the United States in northern Mexico, southeast Arizona, southwest New Mexico, and western Texas. The Arizona pine closely resembles the Ponderosa Pine found growing in the Sierra Madre Occidental in Arizona south to Durango, CO. The Arizona pine grows in high elevations from 5906-8038 feet. It is a medium to tall pine growing to heights of 82-114.8...

Chihuahua Pine Pinus leiophylla
2014-02-21 15:54:49

Chihuahua pine (Pinus leiophylla) grows in Mexico along the Sierra Madre Occidental and Sierra Madre del Sur from Chihuahua to Oaxaca. This tree can also be found growing in the United States in southeast Arizona, southwest New Mexico, Durango, CO,  as well as South Africa and Australia. Commercial plantings can be found in the higher elevations of Kenya, Malawi, Zimbabwe, and Zambia. The...

Yellow-Nosed Cotton Rat Sigmodon ochrognathus
2012-07-20 10:57:52

The yellow-nosed cotton rat (Sigmodon ochrognathus) has a range that extends from eastern Sierra Madre Occidental into the central areas of Durango. Its western range includes western Coahuila, located in Mexico, and it occurs from New Mexico to Arizona. It has a fragmented range in the deserts of Mesa del Norte, located in Trans-Pecos Texas. The yellow-nosed cotton rat appears on the IUCN Red...

Sky Islands
2009-07-04 14:40:55

Sky Islands are mountains located within ranges that are isolated by valleys in which other ecosystems are located. As a result, mountain ecosystems are isolated from each other, and species can develop separately, as occurs on island groups such as the Galápagos Islands. The best known example of sky islands are the northern end of the Sierra Madre Occidental in New Mexico, Arizona,...

Arizona Woodpecker
2006-07-17 13:14:25

The Arizona Woodpecker (Picoides arizonae) is a woodpecker native to southern Arizona and New Mexico and the Sierra Madre Occidental of western Mexico. This species is known in older field guides as a subspecies of Strickland's Woodpecker. Arizona Woodpeckers are nearly identical to Strickland's Woodpeckers, growing to be about 7 to 8 inches in length. Their plumage is mainly brown and white...

Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'