Sierra Madre del Sur in the context of Oaxaca (state)

Chilpancingo de los Bravo (commonly shortened to Chilpancingo; Spanish pronunciation: [tʃilpanˈsiŋɡo] ; Nahuatl: Chilpantzinco (pronounced [t͡ʃiɬpanˈt͡siŋko])) is the capital and second-largest city of the Mexican state of Guerrero. In 2010 it had a population of 187,251 people. The municipality has an area of 2,338.4 km (902.9 sq mi) in the south-central part of the state, situated in the Sierra Madre del Sur mountains, on the bank of the Huacapa River. The city is on Federal Highway 95, which connects Acapulco to Mexico City. It is served by Chilpancingo National Airport, which is one of the five airports in the state.

Petatlán is a city in the municipality of Petatlán located along the Pacific Coast of the Mexican state of Guerrero. It is part of the Costa Grande region between Zihuatanejo and Acapulco. The city is known for the Sanctuary of the Padre Jesús de Petatlán, a 17th-century image of Christ that is claimed to have performed religious miracles. The city is the seat of a large municipality, which faces the Pacific Ocean to the south and is bounded by the Sierra Madre del Sur to the north. It contains the La Soledad de Maciel archeological site. The area's recent history has been marked by violence related to the drug trade and to struggles between business and local farmers and environmental groups. St. Peter, Minnesota is a sister city of Petatlán.

The Costa Chica of Guerrero (Spanish for “small coast of Guerrero") is an area along the south coast of the state of Guerrero, Mexico, extending from just south of Acapulco to the Oaxaca border. Geographically, it consists of part of the Sierra Madre del Sur, a strip of rolling hills that lowers to coastal plains to the Pacific Ocean. Various rivers here form large estuaries and lagoons that host various species of commercial fish.

This area is paired with the Costa Chica of Oaxaca as both have significant populations of Afro-Mexicans. The Afro-Mexican presence in Guerrero is strongest in this region, especially in the coastal municipalities from Marquelia to Cuajinicuilapa. Another important ethnic group is the Amuzgo, who are by far the largest indigenous ethnicity in the region, in the municipalities of Xochistlahuaca, Tlacoachistlahuaca and Ometepec. The Amuzgo, especially in Xochistlahuca, still wear traditional clothing and speak the Amuzgo language. Many women still weave cloth on backstrap looms. The region is one of the poorest in Mexico, with an economy based on subsistence agriculture and fishing, with some commerce, especially along Highway 200, which parallels the coast.

La Mixteca (Nahuatl languages: Mixtecapan) is a cultural, economic and political region in Western Oaxaca and neighboring portions of Puebla, Guerrero in south-central Mexico, which refers to the home of the Mixtec people. In their languages, the region is called either Ñuu Djau, Ñuu Davi or Ñuu Savi. Two-thirds of all Mixtecs live in the region, and the entire national population of Mixtecs in Mexico was 500,000 in 1999.

The region covers some 40,000 km (15,000 sq mi) where two of the country's mountain ranges, the Neo-Volcanic Belt and Sierra Madre del Sur, converge.

Costa Grande of Guerrero is a sociopolitical region located in the Mexican state of Guerrero, along the Pacific Coast. It makes up 325 km (202 mi) of Guerrero's approximately 500 km (311 mi) coastline, extending from the Michoacán border to the Acapulco area, wedged between the Sierra Madre del Sur and the Pacific Ocean. Acapulco is often considered part of the Costa Grande; however, the government of the state classifies the area around the city as a separate region. The Costa Grande roughly correlates to the Cihuatlán province of the Aztec Empire, which was conquered between 1497 and 1504. Before then, much of the area belonged to a dominion under the control of the Cuitlatecs, but efforts by both the Purépecha Empire and Aztec Empire to expand into this area in the 15th century brought this to an end. Before the colonial period, the area had always been sparsely populated with widely dispersed settlements. The arrival of the Aztecs caused many to flee and the later arrival of the Spanish had the same effect. For this reason, there are few archeological remains; however, recent work especially at La Soledad de Maciel has indicated that the cultures here are more important than previously thought. Today, the area economically is heavily dependent on agriculture, livestock, fishing and forestry, with only Zihuatanejo and Ixtapa with significantly developed infrastructure for tourism. The rest of the coast has been developed spottily, despite some government efforts to promote the area.

The Balsas River (Spanish Río Balsas, also locally known as the Mezcala River, or Atoyac River) is a major river of south-central Mexico.

The basin flows through the states of Guerrero, México, Morelos, and Puebla. Downstream of Ciudad Altamirano, Guerrero, it forms the border between Guerrero and Michoacán. The river flows through the Sierra Madre del Sur, and empties into the Pacific Ocean at Mangrove Point, adjacent to the city of Lázaro Cárdenas, Michoacán. Several rapids along the course of the Balsas River limit its navigability and thus the river has been largely used for generation of hydroelectric power, flood control and irrigation.