The Neolithic era began in Catalonia around 4500 BC, although the population was slower to develop fixed settlements than in other places, thanks to the abundance of woods, which allowed the continuation of a fundamentally hunter-gatherer culture. The most important Neolithic remains in Catalonia are the Cave of Fontmajor (l'Espluga de Francolí), The Cave of Toll (Morà), the caves Gran and Freda (Montserrat) and the shelters of Cogul and Ulldecona.