Plio-Pleistocene 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 - 6 of 6 azgs_photo Arizona Rocks Postcard #10 - Sears Point Basalt azgs_photo Guide to the Geology of the Santa Catalina Mtns., Arizona: Geology and Life Zones of a Madrean Sky Island azgs_photo Plio-Pleistocene marl(?) deposits north of Lake Havasu City azgs_photo Volcanic Rocks in Arizona: Past 200 Ma azgs_photo San Francisco volcanic field, Arizona azgs_photo Plio-Pleistocene outcrop in the Safford Basin, eastern Arizona
