As a mountainous system the Pre-Pyrenees are part of the Pyrenees. They run parallel to the main mountain range in a west to east direction. At the eastern end lies the area known as the Sub-Pyrenees.
On the French side the Pyrenees's slopes descend rather abruptly, thus on the northern side, the Pre-Pyrenees are confined to the Corbières Range, towards the eastern end of the mountain system. The Massif de Plantaurel further west deserves mention as well, although not as clearly a foothill.
On the Iberian side, however, the picture is very different: a large and complex system of foothill ranges stretches from Navarre, across northern Aragon, reaching the Mediterranean coast on the Catalan end of the Pyrenees.
... There was also heavy rain March 13-15, with more than 40mm in the south of Catalonia and in the central Pre-Pyrenees ... In the Pyrenees, snow fell mostly in eastern and central areas, reaching 30cm in CadíNord and Prat d'Aguiló. .
