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The Vall Fosca takes us in the Photos of the Readers of La Vanguardia to the Pallars Jussà region. It receives its name, in Spanish "dark valley", from the steep slopes of the mountains that give it its shape. This causes sunlight to reach the bottom of the valley for a few hours a day, especially in winter.
It is often also called Ribera de Flamisell and Valle de Cabdella. Currently, Vall Fosca has become a tourist brand that represents the municipality of Torre de Cabdella.
The Vall Fosca is made up, in the northern part, of more than twenty ponds under peaks of more than 2,500 meters high. The set of these lakes forms a network linked by tunnels called the Cabdella lakes.
The Estany Gento stands out, a pond of glacial origin that is 2,141 meters above sea level, at the head of the Flamisell river. Its surface is 28 hectares and the volume of water contained is 4.24 cubic hectometers.
There are three small valleys: Ricuerna, Filià and the ravine of L'Estany Gento. In the town of Capdella, these three ravines meet and form the Flamisell river, which runs through the municipality of Senterada until Pobla de Segur, where it joins the Noguera Pallaresa.
