Early Tertiary Click the image to see the original photo at maximum resolution (potentially large files). Click the title to see a full description, geolocation, and more. Photos 1 - 3 of 3 azgs_photo Pegmatite dike in biotite granite, Mt Lemmon, Arizona azgs_photo Granite exposed along Mt. Lemmon Highway, Santa Catalina Mountains azgs_photo Granite of the Dragoon Mountains, eastern Arizona
