The main river is the Loa.

Along the Coastal Cordillera lies Atacama Fault.
The area of the Coastal Cordillera around the fault is rich in iron ore constituting the northern part of the so-called Chilean Iron Belt.
These ore deposits are often of the manto-type deposits and are chiefly emplaced on rocks of La Negra Formation.
The main river is the Loa.
Along the Coastal Cordillera lies Atacama Fault. The area of the Coastal Cordillera around the fault is rich in iron ore constituting the northern part of the so-called Chilean Iron Belt. These ore deposits are often of the manto-type deposits and are chiefly emplaced on rocks of La Negra Formation.
Antofagasta Region