Ironwood Forest National Monument

Vegetation & regional scenery

Flora

Cacti

Saguaro and tree distribution

Natural history of the desert ironwood tree

Rare plants

Exotic plants

Human impacts

Chuckwalla and Desert Iguana

Desert Tortoise

Lesser Long-Nosed Bat

Geology

Image galleries by location:

Avra Valley

Aguirre Valley

Pan Quemado Mountains

Ragged Top

Roskruge Mountains

Samaniego Hills

Sawtooth Mountains

Silver Bell Mountains

Waterman Mountains

West Silver Bell Mountains

Image galleries by habitat:

Arizona Upland

Lower Colorado River Valley

Washes

Image galleries by plant types:

Ironwood Tree

Cacti

Crucifixion thorns

Misc. Flora


 

Biological Survey of Ironwood Forest National Monument

Aguirre Valley Images

Photographer: Mark Dimmitt

Right: Aguirre Valley is a large, flat expanse of mostly silty soils. The vegetation consists of creosotebush-dominated scrub dissected by large mesquite washes. Except for the mesquites, trees and saguaros are almost absent. View east from Sunland Gin Road to Solo Peak, the westernmost end of the West Silver Bell Mountains.
Above: At tThe edges of Aguirre Valley where the soils are gravelly, there are some beautiful landscapes.
Left: Several huge braided washes, often a mile wide, cross Aguirre Valley. The trees are almost entirely velvet mesquite.
Aguirre Valley has a number of interesting features that we dubbed "death playas." Wherever the surface completely lacks topographic relief, there are no living plants. The decaying stumps indicate that this condition has developed within the last several decades. The surrounding areas have very slight undulations that collect runoff and support stands of vegetation, mostly creosotebush and shrubby mesquites. Nearby are broad washes with dense forests of large mesquite trees.

 

 


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