Iztaccíhuatl or Ixtaccíhuatl is a 5,230 m (17,160 ft) dormant volcanic mountain in Mexico located on the border between the State of Mexico and Puebla within Izta-Popo Zoquiapan National Park. It is the nation's third highest, after Pico de Orizaba at 5,636 m (18,491 ft), and Popocatépetl at 5,426 m (17,802 ft).

The State of Mexico, officially just Mexico, is one of the 32 federal entities of the United Mexican States. Commonly known as Edomex to distinguish it from the name of the whole country, it is the most populous, as well as the most densely populated, state in the country.