Uinkaret volcanic field
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The Uinkaret volcanic field is an area of monogenetic volcanoes in northwestern Arizona, United States, located on the north rim of the Grand Canyon.
Uinkaret The Expanse Of Time NASA172332
Basalts from the Uinkaret volcanic field flow into the Grand Canyon from its North Rim. On the right is Lava Falls, with Vulcan's Throne at the top, half visible along the right-hand edge of the photo. Vulcan's Throne is about 73,000 years old. These are among the most recent features of the Grand Canyon. The topmost layers over which the lava flowed, the Kaibab Limestone, was deposited in Early Permian time, around 290 million years ago.
Vulcan's Throne (top right) and Lava Falls, 2008 aerial photo
Sunset Crater
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Sunset Crater is a cinder cone located north of Flagstaff in the U.S. state of Arizona, the youngest in a string of volcanoes close to the nearby San Francisco Peaks. The crater is within the Sunset C
Uinkaret volcanic field
…age of 1300 ± 500 years BP. Pottery shards dated to between 1050 and 1200 CE were found within the lava flow, produced around the same time as the Sunset Crater eruption in the San Francisco volcanic field on the South Rim. Geology of the Grand Canyon area…
Sunset Crater from the Cinder Hills