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Cabezon Peak

Volcanic Plug in Cabezon WSA, Colorado Plateau near San Luis, NM

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Cabezon Peak is a large volcanic plug that is a prominent feature in northwestern New Mexico. It rises to 7,785 feet in elevation. Cabezon Peak is two miles south of the old ghost town of Cabezon and the Rio Puerco. This volcanic neck is formed of basalt and is part of the Mount Taylor volcanic field. A volcanic neck or plug is formed when magma from an existing volcano solidifies in the pipe or neck and the surrounding sediment is eroded away. Marine Cretaceous rocks of the Mancos Shale and Point Lookout Sandstone are exposed around the base of Cabezon Peak. Cabezon means “big head” in Spanish. One Navajo myth holds that it is the head of a giant killed by gods.

Classified As

Volcanic Plug

Geologic Formation

Tertiary mafic intrusive rocks (NMTim;0)

Geologic Formation