Trans-Mexican Volcanic Belt in the context of "Valley of Mexico"

The geography of Mexico describes the geographic features of Mexico, a country in the Americas. Mexico is located at about 23° N and 102° W in the southern portion of North America. From its farthest land points, Mexico is a little over 3,200 km (2,000 mi) in length. Mexico is bounded to the north by the United States (specifically, from west to east, by California, Arizona, New Mexico, and Texas), to the west and south by the Pacific Ocean, to the east by the Gulf of Mexico, and to the southeast by Belize, Guatemala, and the Caribbean Sea. The northernmost constituent of Latin America, it is the most populous Spanish-speaking country in the world. Mexico is the world's 13th largest country, three times the size of Texas.

Almost all of Mexico is on the North American Plate, with small parts of the Baja California Peninsula in the northwest on the Pacific and Cocos Plates. Some geographers include the portion east of the Isthmus of Tehuantepec including the Yucatán Peninsula within North America. This portion includes Campeche, Chiapas, Tabasco, Quintana Roo, and Yucatán, representing 12.1 percent of the country's total area. Alternatively, the Trans-Mexican Volcanic Belt may be said to delimit the region physiographically on the north. Geopolitically, Mexico is generally not considered part of Central America. Politically, Mexico is divided into thirty-two states.

Zard-Kuh (meaning "Yellow Mountain", also spelled Zardkuh, Zarduh Kuh or Zard Kuh-e Bakhtiari; Persian: زردکوه بختیاری) is a sub-range in the central Zagros Mountains, Iran.

With an elevation of 4,221 metres (13,848 ft), its highest peak "Kolonchin" is located in the Kuhrang County, in the Chaharmahal and Bakhtiari province of Iran. The Karun and also Zayanderud rivers originate in the Zagros Mountains near the Zard-Kuh. There are small glaciers on the mountain owing to the relatively high precipitation, which are the only glaciers in the subtropics outside the Himalayas, Andes and Trans-Mexican Volcanic Belt.

The Central Mexican Plateau, also known as the Mexican Altiplano (Spanish: Altiplano mexicano), is a large arid-to-semiarid plateau that occupies much of northern and central Mexico. Averaging 1,825 m (5,988 ft) above sea level, it extends from the United States border in the north to the Trans-Mexican Volcanic Belt in the south, and is bounded by the Sierra Madre Occidental and Sierra Madre Oriental to the west and east, respectively.

A low east-west mountain range in the state of Zacatecas divides the plateau into northern and southern sections. These two sections, called the Northern Plateau (Mesa del Norte) and Central Plateau (Mesa Central), are now generally regarded by geographers as sections of one plateau.

The Otomi (/ˌoʊtəˈmiː/; Spanish: Otomí [otoˈmi]) are an Indigenous people of Mexico inhabiting the central Mexican Plateau (Altiplano) region.

The Otomi are an Indigenous people of the Americas who inhabit a discontinuous territory in central Mexico. They are linguistically related to the rest of the Otomanguean-speaking peoples, whose ancestors have occupied the Trans-Mexican Volcanic Belt for several thousand years. Currently, the Otomi inhabit a fragmented territory ranging from northern Guanajuato, to eastern Michoacán and southeastern Tlaxcala. However, most of them are concentrated in the states of Hidalgo, Mexico and Querétaro. According to the National Institute of Indigenous Peoples of Mexico, the Otomi ethnic group totaled 667,038 people in the Mexican Republic in 2015, making them the fifth largest Indigenous people in the country. Of these, only a little more than half spoke Otomi. In this regard, the Otomi language presents a high degree of internal diversification, so that speakers of one variety often have difficulty understanding those who speak another language. Hence, the names by which the Otomi call themselves are numerous: ñätho (Toluca Valley), hñähñu (Mezquital Valley), ñäñho (Santiago Mexquititlán in southern Querétaro) and ñ'yühü (Northern highlands of Puebla, Pahuatlán) are some of the names the Otomi use to refer to themselves in their own languages, although it is common that, when speaking in Spanish, they use the native Otomi, originating from the Nahuatl.

A volcanic belt is a large volcanically active region. Other terms are used for smaller areas of activity, such as volcanic fields or volcanic systems. Volcanic belts are found above zones of unusually high temperature (700 to 1,400 °C (1,292 to 2,552 °F)) where magma is created by partial melting of solid material in the Earth's crust and upper mantle. These areas usually form along tectonic plate boundaries at depths of 10 to 50 kilometres (6.2 to 31.1 mi). For example, volcanoes in Mexico and western North America are mostly in volcanic belts, such as the Trans-Mexican Volcanic Belt that extends 900 kilometres (560 mi) from west to east across central-southern Mexico and the Northern Cordilleran Volcanic Province in western Canada. In the case of Iceland, the geologist G.G. Bárdarson in 1929 identified clusters of volcanic belts while studying the Reykjanes Peninsula.

The deeply deformed and eroded remnants of ancient volcanic belts are found in volcanically inactive regions such as the Canadian Shield. It contains over 150 volcanic belts (now deformed and eroded down to nearly flat plains) that range from 600 to 1,200 million years old. These are zones of variably metamorphosed mafic to ultramafic volcanic sequences with associated sedimentary rocks that form what are known as greenstone belts. They are thought to have formed at ancient oceanic spreading centers and island arc terranes. The Abitibi greenstone belt in Ontario and Quebec, Canada is one of the world's largest greenstone belts.

Volcanoes in Mexico form a significant part of the country's geological landscape, with numerous active and extinct volcanoes primarily located along the central-southern Trans-Mexican Volcanic Belt. The diverse array of volcanic features in Mexico includes stratovolcanoes, shield volcanoes, cinder cones, lava domes, and calderas.

Many of Mexico's volcanoes are part of the Pacific Ring of Fire, a region characterized by frequent earthquakes and volcanic eruptions. Notable volcanoes include Popocatépetl, one of the country's most active and dangerous volcanoes, Pico de Orizaba (Citlaltépetl), the highest peak in Mexico, and Parícutin, a cinder cone volcano that famously emerged from a cornfield in 1943.Volcanoes play a significant role in Mexico's geography, climate, and culture, influencing local ecosystems, agriculture, and human settlements. The volcanic activity also poses hazards to surrounding communities, necessitating ongoing monitoring and disaster preparedness efforts.