Wikipedia
Tierra caliente is a pseudo-climatological term used in Latin America to refer to those places within that realm which have a distinctly tropical climate. The tierra caliente forms at Sea Level from 0-3,000 feet. The Peruvian geographer Javier Pulgar Vidal used the altitude of 1,000 m as the border between the Tropical Rain forest and the Subtropical Cloud forest ( Yunga fluvial).
Most locations within this zone are situated along coastal plains, but some interior basin regions also fit into the category. Here agriculture is dominated by the cultivation of crops with strong tropical associations, such as bananas and sugar cane.
Tierra Caliente (Spanish for Hot Land) is a cultural and geographical region in southern Mexico that comprises some low-elevation areas of the states of Michoacán, Guerrero and Estado de Mexico. As the name suggests, the region is characterized by a hot climate. The overall precipitation is also low - around 600 mm/year, but can be as low as 400 mm in some low-lying areas of Michoacán and Guerrero.
The region is characterized by low human development and civil unrest, and has become an epicenter for Mexican drug production (notably opium poppy) as well as drug trafficking. It is mainly inhabited by indigenous communities.
Municipios included:
Michoacán: Churumuco de Morelos, San Lucas, Tuzantla, Susupuato de Guerrero, Nocupétaro de Morelos, Carácuaro de Morelos, Tiquicheo, Huetamo de Nuñez.
Guerrero: Arcelia, San Miguel Totolapan, Ajuchitlán del Progreso, Tlapehuala, Coyuca de Catalán, Zirándaro, Cutzamala de Pinzón, Pungarabato, Tlalchapa.
Estado de México: Tlataya, Amatepec, San Simón de Guerrero, Tejupilco, Sultepec, Zacualpan.