9°10′12″S 36°5′17″W / 9.17000°S 36.08806°W
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Serra da Barriga is a mountain range located in the municipality of União dos Palmares, in the Brazilian state of Alagoas. It is best known for being the location of a fortified settlement known as Cerca do Macaco under the control of the Palmares, an established group of fugitives and escaped slaves. At the time of the Palmares, it was a part of the state of Pernambuco.[1] The final assault on the mountain occurred in January 1694, and was led by the Portuguese Bandeirante Domingos Jorge Velho.[2] The mountain was listed in the National Institute of Historic and Artistic Heritage (IPHAN) in 1986.
The Serra da Barriga is part of the Southern Borborema Plateau, a geomorphological unit with a hot and humid climate. The area occupied by the Serra da Barriga is the starting point of the Açucena creek, a tributary which flows to the Mundaú valley. It flows to the north of the mountain, and reaches 8.6 km in length.[3][4][5][6]