A map of New Mexico with volcanic fields younger than 15 million years marked in red and the Jemez Lineament marked in green. El Malpais is located within the Zuni-Bandera Volcanic Field on the western side of the state. Courtesy Photo
Did You Know? Zuni-Bandera
El Malpais National Monument
Did you know that the volcanic fields in northern New Mexico, including El Malpais' field, Zuni-Bandera, form a line across the state? This line is called the Jemez Lineament, and it marks an area of weakness in the Earth’s crust.Why is the crust weak here?
Wednesday, February 11, 2026
