The region of Vallés Occidental is a large part of the plain between the Collserola and the massive San Llorenç
halfway between the two watershed Besós and Llobregat, where the boundaries are more defined by its municipal terms
rather than the natural features.
This is a part of the Depression PreLitoral limited to the west by the Llobregat and at east by the stream of
Caldes. The north of the county is occupied by various mountains of the Cordillera Prelitoral. Some of these mountains
form the roof of the county. From west to east, the mountains are part of the Hills of Obac (924m. altitude in
Castellsapera), the massive San Llorenc del Munt (1.095m. to Mola and 1053m. to Montcau), Puig de
la Creu (664m.), the peaks of Sant Sadurní (954m.) and the Farell (789m.). At the South of the county found
the Collserola mountain range (512m. altitude), which is part of the coastal mountain Litoral.
The central vallesana is occupied by the valley that gives its name to the county coincide with the watershed of the Besós and
Llobregat.
The Vallés Occidenal is one of the main regions of Catalonia, brings together 23 municipalities, some ancient, as a
land that is from the old Catalonia. Having two co-capitales, Sabadell and Terrassa is unique to Catalonia.
The Population in this sector from the historical point of view more important were Terrassa, Sabadell and San
Cugat del Vallés. The economy was once agro-based, with a large number of rustic houses and rural communities. However,
the proximity to Barcelona and communications led to a big industrial development, especially in Sabadell and
Terrassa, which in the mid-nineteenth century became a powerful industry téxtil wool.
Today, form one of the most industrialized regions of Catalonia and densely populated localities have offered many services.
In recent years, as a result of the industrial crisis of the late 70's and early 80's there has been a major development in
the commercial sector and services (IT). In the northern economy is predominantly rural, hosting a large number of estates second
homes.
Although not a tourist place in the conventional sense and popular term in the Vallés Occidental are many places of
interest, such as parks Collserola and San Llorenc del Munt and Hills Obac, archaeological sites or
neighborhoods modern.
It is a very diverse and lush territory that also has an important catalog of vestígios historical monuments and cultural diversity.
The Vallés Occidental retains some of its natural wealth i paisagística and an architectural and cultural heritage that is
worth taking into account when hear their innermost places.
