Home | Arizona Geological Survey - AZGS

landslide in the highway

Natural Hazards in Arizona

Learn about Arizona's Natural Hazards

bidahochi basin

AZGS Newsletter - Summer 2026

Arizona Geology Newsletter - Summer 2026

Looking southwest, across Secret Pass Wash towards the junction of the Secret Pass, Union Pass (west), Mt Nutt (south), and Oatman (southwest) 7.5’ quadrangles. The ridge is composed of 18-19Ma andesitic and dacitic lavas at the base of the Miocene volcanic section.

Publications

Reports, geologic maps, mining data, databases, and more

Interactive Geologic Map of Grand Canyon

Interactive Geologic Map of Grand Canyon

Explore the Grand Canyon with one of our most popular maps

Morenci Mine

Directory of Arizona's Active Mines 2024

Report on Active Mines in Arizona in 2024

Interested in supporting the Arizona Geological Survey? Donate to our foundation here.

Read All News See All Publications