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How old is the Grants lava flow?

April 26, 2017flow Grants LAVA

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How old is the Grants lava flow?

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The lava flow east of Grants, New Mexico, which can easily be seen while driving on Interstate 40, is the product of the youngest volcanic eruption in New Mexico. This flow, known as the McCartys lava flow, has been dated at 3,800±1,200 years (Dunbar and Phillips, 2004).