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Natural Hazards in Arizona

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Black Canyon Wash

AZGS Newsletter - Winter 2026

Arizona Geology Newsletter - Winter 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

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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

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