Presa de MontejaquePresa de Montejaque was a reservoir in the province of Málaga, Andalusia, Spain. It is also known as "Presa del Hundidero" and "Presa de los Caballeros"RiverLe reservoir gets water from Gaduares river.ConstructionThe preliminary studies to build the wall started in 1917, and the project was abandoned in 1947, unable to keep water inside the walls