Sierra Suroeste is a comarca (county, with no administrative role) located in southwestern province of Badajoz in the autonomous community of Extremadura, western Spain.

Jerez de los Caballeros is home to a number of mosaics, stone stairs, and the bridges of Pontón and Viejo, all of which date to early Roman construction.

Oliva de la Frontera was a Roman copper-working center, as evidenced by the discovery of 250 metalworking ovens and the remains copper mines and excavated ores.

Especially impacted were agricultural practices, such as plowing, wherein the Arabs introduced new methodologies that greatly improved upon the efficiency of existing Roman techniques.

Ten years later, Alfonso led a military campaign through the province to assure its safety, before ceding control of the territory to the Knights Templar.

The territory experienced a great population boom and flourishing of local economies when the Knights Templar took control of the area.

In 1312 CE, Pope Clement V dissolved the Order of the Templar, and the Knights' lands and titles were transferred to the Spanish crown.

A number of well-known conquistadors came from Sierra Suroeste, such as Alonso Rodríguez Santos and Hernando de Soto.

Sierra Suroeste is one of the most productive jamón ibérico-producing regions of Spain, thanks in part to the abundance of black Iberian pigs in the area.

The acorn-eating bovines share the fields with large numbers of horses, sheep, goats, cows, donkeys, mules, and chickens.

Additionally, the forests are home to significant numbers of a variety of game animals, especially deer, wild boar, and foxes.

The European Union-designated Special Protection Area Dehesas de Jerez covers 480 km2 and occupies approximately third of the comarca.

Due to the proximity to Huelva, and the comarca's natural abundance of black Iberian pigs, many pork products are produced and consumed in Sierra Suroeste.