Río Muni (called Mbini in Fang) is the Continental Region (called Región Continental in Spanish) of Equatorial Guinea, and comprises the mainland geographical region, covering 26017sqkm. The name is derived from the Muni River, along which the early Europeans had built the Muni River Settlements.
Río Muni was ceded by Portugal to Spain in 1778 in the Treaty of El Pardo. The Spanish had hoped to collect slaves to work in their other overseas possessions, but the settlers died of yellow fever, and the area was deserted. Cocoa and timber became major industries upon recolonization. Río Muni, along with Bioko, became a province of Spanish Guinea in 1959.
In 2015, 885,015 people—about 72% of Equatorial Guinea's population—lived in Río Muni. The main languages spoken in Río Muni are Fang-Ntumu, which is spoken in the north, and Fang-Okak, which is spoken in the south. Spanish is also spoken, although only as a second language.
Río Muni comprises five provinces:
The largest city is Bata, which also serves as the regional administrative capital. Other major towns include Evinayong, Ebebiyín, Acalayong, Acurenam, Mongomo and Mbini.