Algibre River

Algibre River
The start of the Algibre River at confluence of the Mercês and Benémola rivers
Country	Portugal
Region	Algarve
District	Faro
Municipality	Loulé
Coordinates	37°10′51″N 8°12′28″W / 37.1808742°N 8.207881°W / 37.1808742; -8.207881Coordinates: 37°10′51″N 8°12′28″W / 37.1808742°N 8.207881°W / 37.1808742; -8.207881
Primary source	Moinhos River
- location	Querença, Algarve
- elevation	200 m (656 ft)
- coordinates	37°11′29.9″N 8°00′26.2″W / 37.191639°N 8.007278°W / 37.191639; -8.007278
Secondary source	Mercês River
- location	Querença
- elevation	200 m (656 ft)
- coordinates	37°11′29.9″N 8°00′26.2″W / 37.191639°N 8.007278°W / 37.191639; -8.007278
Source confluence
- location	Quarteira River
- elevation	50 m (164 ft)
- coordinates	37°10′51.5″N 8°12′28.1″W / 37.180972°N 8.207806°W / 37.180972; -8.207806
Mouth	Into the Atlantic at Quarteira
Length	13.5 mi (22 km), East to West
Confluence of the Algibre River and the Quarteira River

River Algibre is a small river in the Portuguese region of the Algarve. The Algibre River is formed by the confluence of the Mercês (Ribeira das Mercês) and Benémola (Ribeira da Benémola) rivers close to the village of Querença in a small fertile valley. The area is characterized by many derelict sluices and dams that date back to the period of Arab occupation, during which the whole area was irrigated and agriculture was the predominating activity of this land. The river along with the Alte River, another tributary, becomes the River Quarteira after the two rivers conflux. The river runs eastwards for 21.7 kilometres (13.5 mi) from its start at the confluence of.

The Algibre is one of a number of small rivers in the central Algarve that make up the water ecosystem known as the Querença – Silves Aquifer System.