Sierra Estrella, Arizona

Arizona Geology

On November 1, 2015, several small but noticeable earthquakes struck north of Phoenix. Read more about this rare event.

Read a brief summary of the geologic history of the Phoenix area.

GemLand provides good, basic information about Arizona geology.

Steven J. Reynolds (Arizona State University) has a lot of awesome stuff about Arizona geology on his website. You'll have to do some digging around to find the particularly cool stuff, but it's totally worth it. Check it out.

Back to Rocking with the Rocks

Page modified on 7/18/2016