General description Threats Access, hiking maps & info. Flora & fauna Geology Archaeology

Geology of Ironwood Forest National Monument - Ironwood Forest National Monument contains a valuable cross section of  Basin and Range geology.  Ragged Top Mountain is a 25 million year old rhyolitic peak adjacent to the porphyritic copper formation of the Silverbell Mountains.  The Waterman Mountains, adjacent to the Silverbells on the south, are composed of ~300 million year old sedimentary rocks, including limestone.