The Catalan Mediterranean system is based on two ranges running roughly parallel to the coast (southwest–northeast), called the Coastal and the Pre-Coastal Ranges. The Coastal Range is both the shorter and the lower of the two, while the Pre-Coastal is greater in both length and elevation. Areas within the Pre-Coastal Range include Montserrat, Montseny and the Ports de Tortosa-Beseit. Lowlands alternate with the Coastal and Pre-Coastal Ranges. The Coastal Lowland is located to the East of the Coastal Range between it and the coast, while the Pre-Coastal Lowlands are located inland, between the Coastal and Pre-Coastal Ranges, and includes the Vallès and Penedès plains.
The Catalan Mediterranean system is based on two ranges running roughly parallel to the coast (southwest–northeast), called the Coastal and the Pre-Coastal Ranges. The Coastal Range is both the shorter and the lower of the two, while the Pre-Coastal. is greater in both length and elevation. Areas within the Pre-Coastal Range include Montserrat, Montseny and the Ports de T,ortosa-Beseit. Lowlands alternate with the Coastal and Pre-Coastal Ranges The Coastal Lowland is located to the East of the Coastal Range between it and the coast while the Pre-Coastal Lowlands are located inland, between the Coastal and Pre-Coastal Ranges, and includes the Vallès and Penedès plains.