The pre-Andean highlands and some of the taller and more massive mountains in the coastal range (principally the Cordillera de Nahuelbuta) still contain large tracts of old-growth forests of remarkable beauty, some of which have been set aside as national parks. Between the coastal mountains and the ocean, many areas of central Chile contain stretches of land that are lower than the Central Valley and are generally quite flat. The longest beaches can be found in such sections.
In the pre-Andean highlands and certain taller, more substantial mountains along the coastal range (such as the Cordillera de Nahuelbuta), there remain extensive tracts of old-growth forests with remarkable beauty, some of which have been protected. Between the coastal mountains and the ocean, many areas in central Chile are lower than the Central Valley and generally flat. The longest beaches can be found in these sections.