View of the arid mountains near Iquique ending abruptly in the Pacific Ocean. The coastal cliff at La Portada near Antofagasta . The Coastal Cliff of northern Chile (Spanish : Acantilado Costero ) stretches over a length of more than 1000 km along the Atacama Desert . It makes up a large part of the western boundary to the Chilean Coast Range in the regions of Arica y Parinacota , Tarapacá , Antofagasta , and Atacama .[ 1] Roland Paskoff , the modern cliff originated from a scarp retreat of a fault scarp , thus at present the cliff does not follow any fault.[ 2]
In some locations, a series of coastal benches can be found below the cliff.[ 3] uplift and subsidence of the continent at a decadal timescale the cliff and the whole western edge of the South American Plate has faced a long-term uplift during the last 2.5 million years .[ 3]
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