The Sierra Mazateca is a mountaineous area, part of the Sierra Madre de Oaxaca

Sierra Madre de Oaxaca

The Sierra Madre de Oaxaca is a mountain range in southern Mexico. It begins at Pico de Orizaba and extends in a southeasterly direction for 300 km until reaching the Isthmus of Tehuantepec...

, located in the northern part of the state of Oaxaca

Oaxaca

Oaxaca , , officially Estado Libre y Soberano de Oaxaca is one of the 31 states which, along with the Federal District, comprise the 32 federative entities of Mexico. It is divided into 571 municipalities; of which 418 are governed by the system of customs and traditions...

 in Southern Mexico

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

. Its western part is within the district of Teotitlan del Camino

Teotitlán District, Oaxaca

Teotitlán District is located in the north of the Cañada Region of the State of Oaxaca, Mexico.-Municipalities:The district includes the following municipalities:*Ejutla de Crespo*Eloxochitlán de Flores Magón*Huautepec...

 in the Cañada

Cañada, Oaxaca

Cañada is a region in the state of Oaxaca, Mexico covering 4,300 square km. It includes two districts, Teotitlán and Cuicatlán.The main administrative center is Teotitlan de Flores Magon, but Huautla de Jimenez is considered the most important cultural center in the region.The region is named after...

 and its eastern part is within the district of Tuxtepec

Tuxtepec District, Oaxaca

Tuxtepec District is located in the north of the Papaloapan Region of the State of Oaxaca, Mexico.-Municipalities:The district includes the following municipalities:*Acatlán de Pérez Figueroa*Ayotzintepec*Cosolapa*Loma Bonita*San Felipe Jalapa de Díaz...

, in the region of Papaloapan

Papaloapan Region, Oaxaca

The Cuenca del Papaloapan Region is in the north of the state of Oaxaca, Mexico where the foothills of the Sierra Madre de Oaxaca meet the coastal plain of Veracruz.The principal city is San Juan Bautista Tuxtepec, the second largest in Oaxaca state....

. It is named after its main indigenous population, the Mazatec people. The main towns of the area are Huautla de Jimenez, Eloxochitlán de Flores Magón

Eloxochitlán de Flores Magón

Eloxochitlán de Flores Magón, formerly known as San Antonio Eloxochitlán, is a city and municipality in the Mexican state of Oaxaca.It is part of the Teotitlán District in the north of the Cañada Region...

 and Jalapa de Díaz. In 1954 the eastern part of the MAzatec area was flooded by the construction of the Miguel Alemán Dam

Miguel Alemán Dam

The Miguel Alemán Dam is on the Tonto River in the Papaloapan Region of Oaxaca state in southern Mexico, just upstream from the town of Temascal or Nuevo Soyaltepec, forming the Miguel Alemán Lake with an area of 47,800 hectares....

 and turned into the Miguel Alemán Lake.