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Trees of higher elevations of the area include Ponderosa pine, Blue spruce, Engelmann spruce, White fir, Rocky Mountain Douglas-fir, and Quaking aspen.The lower elevations have a mixed woodland with species such as Alligator juniper, Single-leaf pinyon, Colorado pinyon, Gambel oak, Emory oak, and Arizona white oak.
The southeast of Arizona, with New Mexico, northwest Chihuahua and northeast Sonora contain insular sky island mountain ranges, (the Madrean Sky Islands), or smaller subranges in association. There are also numerous Sonoran Desert ranges, or Arizona transition zone ranges.
Apache pine (Pinus engelmannii) in the Chiricahua Mountains of southeastern Arizona. Species of pine (Pinus) and oak (Quercus) are the predominant trees in the ecoregion. Plant communities vary with rainfall, elevation, temperature, and soils, and species can vary between the sky island, northern, central, and southern portions of the range.
The Tonto Forest Reserve was established on October 3, 1905 by the United States General Land Office. In 1906 the forest reserves were transferred to the U.S. Forest Service, and on March 4, 1907 Tonto became a National Forest. On January 13, 1908 the Pinal Mountains National Forest was added along with other lands.
The elevation in the forest ranges from 2,600 feet (790 m) in the southern part of the forest near the Verde River to 12,633 feet (3,851 m) at the summit of Humphreys Peak, the highest point in the state of Arizona. [5] Much of the forest is a high altitude plateau (average elevation is roughly 7,000 feet (2,100 m) on the plateau) that is ...
Ponderosa pine forest is a plant association and plant community dominated by ponderosa pine and found in western North America. It is found from the British Columbia to Durango, Mexico . [ 1 ] In the south and east, ponderosa pine forest is the climax forest , while in the more northern part of its range, it can transition to Douglas-fir or ...
The biotic community of the Bradshaws ranges from interior chaparral and montane conifer forest, to plains and desert grassland, and Sonoran desert scrub. Many species of trees are found in the Bradshaws, including Piñon , Alligator Juniper , Ponderosa pine , Blue Spruce , Quaking Aspen , White fir , and Douglas fir .
Apache National Forest Greer, Arizona, Ranger Station, 1924. Apache–Sitgreaves National Forests has eight notable cold water lakes and boasts numerous lakes and reservoirs and over 680 miles (1094 km) of rivers and streams. The headwaters for the Black, Little Colorado, and San Francisco rivers are in the White Mountains.
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