Global Volcanism Program | Image GVP-08110
Monogenetic cones of the Chichinautzin volcanic field are seen here below the western flanks of Iztaccíhuatl. These cones, including Cerro Tenayo to the lower left, lie at the easternmost extension of the 90-km-wide Chichinautzin volcanic field, south of the Valley of Mexico. The compound Iztaccíhuatl volcano is mostly Pleistocene in age.
Photo by Hugo Delgado, 1994 (Universidad Nacional Autónoma de México).