El Pallars Sobirà expands from south to north, starting at the gorge of Collegats to the village of Alós d'Isil, following the course of the river La Noguera Pallaresa. It is the fourth biggest county in Catalonia and it has one of the lowest densities of population in the country, about 4 inhabitants per km. On the whole , there are approximately 6.000 inhabitants.
The lake of Certascan is the biggest lake of the Pyrenees and the highest peak in Catalonia, the Pica d'Estats.
Most of El Pallars Sobirà is a protected area, a nature reservation. There are a few territories that belong to the PEIN (Pla d'Espais d'Interès Natural de Catalunya- Natural Interest Landscape Plan of Catalonia), as Aigüestortes National Park and Sant Maurici Lake, the Pyrenean Natural Park, the Natural Partial Reserve of La Noguera Pallaresa - Collegats, a wide range of areas belonging to the Xarxa Natura 2000, the Natural Hunting Reserve of Boumort, etc.