Weather 101: Formation of the amazing Chiricahua National Monume - Tucson News Now

Weather 101: Formation of the amazing Chiricahua National Monument

When I first visited the national treasure called Chiricahua National Monument, I couldn't see enough of it, I couldn't breath enough of its clean air, and I couldn't have had more curiosity about what created the spires that make this national park like no other.

Although I am not a geologist, I've dug up tons of information on the formation of the spires (sometimes called hoodoos) of the Chiricahua National Monument.
About twenty-seven (27) million years ago, a massive volcano with the power of one thousand (1000) Mt. St. Helens eruptions combined, blew enough ash and lava to cover the area of northwest Mexico and southwest United States with about two thousand (2000) feet of ash and lava.
Over the mellinia, the softer ash deposits have eroded away, while the harder remnants of the lava deposit have been much more resistant to erosion. It is the differing speeds of erosion of the ash and lava deposits that creates the majestic spires of the monument.
Check out these photos of the spires. And, by all means, visit the monument! Directions are here.


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