basalt

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Photos 1 - 24 of 28

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Fortification Hill, Lake Mead, Arizona

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Bird's-eye view of SP Crater, Arizona

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Vulcan's Forge, Grand Canyon

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DRAFT - Surfical deposits of NW Flagstaff

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Arizona Road Cut ~ NW of Tonopah, AZ, along I-10

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Strawberry Crater Cinder Cone, San Francisco volcanic field

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Rock exposed along the Bill Williams River

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House Mountain, Verde Valley, Arizona

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House Mountain - where scoria meets bedrock

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Arizona Rocks postcard

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Cinder cone quarry, San Francisco volcanic field, Flagstaff, Arizona

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Guide to the Geology of the Sedona & Oak Creek Canyon Area, Arizona

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House Mountain shield volcano, Sedona, Arizona

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SP Crater lava flow, San Francisco volcanic field

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Collapsed agglutinate beds at Strawberry Crater

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Merriam Crater and the Sproul, San Francisco volcanic field

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Maar volcano of the San Bernardino volcanic field

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Inverted topography on northern edge of Springerville volcanic field, Arizona

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Shadow Mountain, Arizona

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Grand Falls, Arizona, during flood stage

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Sunset Crater and O'Leary Peak, San Francisco volcanic field

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Uinkaret volcanic field, North Rim of Grand Canyon

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Vulcan's Throne, Uinkaret volcanic field, North Rim of Grand Canyon