Xitle is a volcano

Volcano

2. Bedrock3. Conduit 4. Base5. Sill6. Dike7. Layers of ash emitted by the volcano8. Flank| 9. Layers of lava emitted by the volcano10. Throat11. Parasitic cone12. Lava flow13. Vent14. Crater15...

 in the Ajusco

Ajusco

Ajusco is a lava dome volcano located just south of Mexico City, Mexico, in the Tlalpan borough of the city. It is the highest point in the Mexican Federal District, which contains Mexico City.-Etymology:...

 range in Cumbres del Ajusco National Park

Cumbres del Ajusco National Park

Cumbres del Ajusco National Park is one of many national parks near Mexico City, DF. The Ajusco is known for its high elevations reaching 3,900 meters above sea level and is visible from any part of Mexico city. The park is characterized by pine-oak forests and high mountain grassland...

. It is located in the Tlalpan

Tlalpan

Tlalpan is one of the sixteen administrative boroughs of the Federal District of Mexico City. It is the largest borough, with over eighty percent under conservation as forest and other ecologically sensitive area. The rest, almost all of it on the northern edge, has been urban since the mid 20th...

 borough in the southwestern part of Mexico City

Mexico City

Mexico City is the Federal District , capital of Mexico and seat of the federal powers of the Mexican Union. It is a federal entity within Mexico which is not part of any one of the 31 Mexican states but belongs to the federation as a whole...

. It is an ash cone volcano with a conical form, round base, altitude of approximately 300m, and a slope between 30° and 40°.

Xitle registered its last eruption in 400. Among the consequences of this eruption were the formation of the Pedregal de San Ángel, to the south of the Mexican Federal District. Cuicuilco

Cuicuilco

Cuicuilco is an important archaeological Mesoamerican Middle and Late Formative period site located on the southern shore of the Lake Texcoco in the southeastern Valley of Mexico. Today, it is a significant archaeological site that was occupied during the Early Formative until its destruction in...

, one of the most refined cities of Mesoamerica

Mesoamerica

Mesoamerica is a region and culture area in the Americas, extending approximately from central Mexico to Belize, Guatemala, El Salvador, Honduras, Nicaragua, and Costa Rica, within which a number of pre-Columbian societies flourished before the Spanish colonization of the Americas in the 15th and...

 was destroyed by one of Xitle's eruptions in 50 BC and was covered by lava. The subsequent diaspora

Diaspora

A diaspora is "the movement, migration, or scattering of people away from an established or ancestral homeland" or "people dispersed by whatever cause to more than one location", or "people settled far from their ancestral homelands".The word has come to refer to historical mass-dispersions of...

 of the Cuicuilcans, and the attendant diffusion of their culture across most of central Mexico, influenced important cultural changes in the nearby power center of Teotihuacan

Teotihuacan

Teotihuacan – also written Teotihuacán, with a Spanish orthographic accent on the last syllable – is an enormous archaeological site in the Basin of Mexico, just 30 miles northeast of Mexico City, containing some of the largest pyramidal structures built in the pre-Columbian Americas...

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