Biological Survey of Ironwood Forest National Monument

West Silver Bell Mountains gallery

Photographer: Mark Dimmitt

Above: Views southeastward from Solo Peak at the west end of the West Silver Bell Mountains. The scar in the background is the ASARCO copper mine in the Silver Bell Mountains. The leftmost peak in the left image is Ragged Top.

View northeast from the West Silver Bell Mountains to Malpais Hill (dark mass on right horizon) and the sharp Picacho Peak. Ironwood trees are rare in the West Silver Bells.
East bajada of Solo Peak. There are few trees here and no ironwoods.
Above: The south bajada of granitic Solo Peak supports good stands of ironwood trees (about a third of the trees in the left scene), in contrast to most of the West Silver Bell Mountains.
Above: Two of the many washes draining the West Silver Bell Mountains. Tiro Wash (right) is one of the few that have ironwood trees.

Though IFNM is rich in cactus species, few areas have dense populations of cacti other than saguaro. This prickly pear patch (Opuntia engelmannii) is therefore unusual. The geologically identical Tucson Mountains only 20 miles to the west have fewer cactus species but much denser populations. The slope in the background is teddy bear cholla (Cylindropuntia bigelovii); there are many small colonies of this species in the Monument. 		 

 

 
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Biological Survey of Ironwood Forest National Monument General Vegetation Vascular Flora Cacti Distribution and Status of Saguaros and Trees Natural History of the Desert Ironwood Tree (Olneya tesota) Rare Plant Inventory Exotic Plants Assessment Human Impacts Lesser Long-Nosed Bat Geologic Aspects of Ironwood Forest National Monument Avra Valley Gallery Aguirre Valley Images Pan Quemado Gallery Ragged Top Gallery Roskruge Mountains Gallery Samaniego Hills Gallery Sawtooth Mountains Gallery Silver Bell Mountains Gallery Waterman Mountains Gallery West Silver Bell Mountains Gallery Arizona Upland Gallery Lower Colorado River Valley Gallery Xeroriparian Habitats (Desert Washes) The Desert Ironweed Tree - Olneya tesota Cacti of IFNM Crucifixion Thorns of IFNM Gallery of Selected Noncactaceous Flora
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