Atacama Large Millimeter Array
The Atacama Large Millimeter Array (ALMA) site in Chile is at ~5000 m (~16,500 ft) altitude near Cerro Chajnantor in northern Chile. This is about 40 km (about 25 miles) east of the historic village of San Pedro de Atacama, 130 km (about 80 miles) southeast of the mining town of Calama, and about 275 km (about 170 miles) east-northeast of the coastal port of Antofagasta.