Chapada Diamantina (Portuguese for the "Diamond Plateau") is a region of Bahia state, in the Northeast of Brazil. This same chain receives other names, like Serra do Espinhaço, in Minas Gerais, and Borborema, in Pernambuco and Paraíba.
The Chapada Diamantina is at the center of Bahia state, in the Northeast of Brazil. It is the septentrional zone of the Espinhaço Range, has approximately 38,000 km2 (15,000 sq mi) and encompasses 58 municipalities. Technically it is considered part of the caatinga biome, and is the highest area in this biome, almost all of it over 500 metres (1,600 ft) of altitude. The vegetation, always conditioned by the physiographic conditions, is represented by the cerrado, rocky fields, forests and caatinga, all of them harbouring great biodiversity and endemisms. The regions climate is considered to be Mesotermic, of the Cwb according to the Köppen classification, and is quite cooler than the surrounding areas, with annual averages under 22 °C. Chapada Diamantina consists of the region roughly between the cities of Mucugê (13°00′S 41°22′W / 13.000°S 41.367°W) at the south, Andaraí (12°48′S 41°20′W / 12.800°S 41.333°W) at the southeast, Lençóis (12°33′S 41°23′W / 12.550°S 41.383°W) at the northeast and Palmeiras (12°31′S 41°35′W / 12.517°S 41.583°W) at the northwest. This region is named the Serra do Sincorá Ridge. However, the city of Ibicoara, near the southern limits of Chapada Diamantina, is also becoming important. The Sincorá Ridge is North–South oriented and has a length of 160 km and 20 to 30 km of width.