Riba-roja Reservoir Nature · Riba-roja d'Ebre, Ribera d'Ebre, Tarragona The Riba-roja reservoir is a dam on the river Ebro created by a barrier in the municipality of Riba-roja d'Ebre, which also extends into the municipalities of la Pobla de Massaluca, Faió and Mequinensa, already in Aragonese territory. Hemmed in between limestone plateaus, it is 38 kilometres long and covers 2,152 hectares, reaching as far as the confluence with the river Segre; its hydroelectric power station has a capacity of 262.8 MW. The surrounding area, with the limestone-marl slopes of the sierras of Berrús and la Fatarella, offers notable landscapes at the confluence of the rivers Matarraña and Ebro, with spectacular gorges. It is one of the unspoilt areas of inland Catalonia, with more than 50 navigable kilometres and fishing rich in native species such as eel, perch and tench. Photo: eldelinux from Cataluña, España (CC BY 2.0) What to see and do in Riba-roja d'Ebre