Calama, Chile Calama, Chile Calama is a city and commune in the Atacama Desert in northern Chile. It is the capital of El Loa Province, part of the Antofagasta Region. Calama is one of the driest cities in the world with average annual precipitation of just . The River Loa, Chile's longest, flows through the city. Calama has a population of 147,886 (2012 census). The commune also encompasses the Quechuas communities of Estación San Pedro, Toconce and Cupo; and the Lickan-antay communities of Taira, Conchi Viejo, Lasana, San Francisco de Chiu Chiu, Aiquina-Turi, and Caspana. In 2003 the nearby town of Chuquicamata,
Twilight in the Desert favor. Similarly themed books include: Twilight in the Desert Twilight in the Desert: The Coming Saudi Oil Shock and the World Economy is a book by American investment banker Matthew Simmons. The text was initially published on June 10, 2005 by John Wiley & Sons. The book focuses on the petroleum industry of Saudi Arabia and posits that this country is approaching—or already at—its peak oil output and cannot substantially increase its oil production. —Review on theoildrum.com Simmons' prediction of rising oil prices made in "Twilight in the Desert" led to a bet with "New York Times" columnist John Tierney