We drove past the turnoff to ALMA in April but were not allowed to go there. It is just south of San Pedro de Atacama in Chile.
http://www.abc.net.au/news/2011-10-0...escope/3208408
"A powerful telescope affording a view of the universe unmatched by most ground-based observatories gazed onto distant galaxies for the first time from deep in Chile's Atacama desert.
The Atacama Large Millimetre/submillimetere Array (ALMA), a joint project between Canada, Chile, the European Union, Japan, Taiwan and the United States, officially opened for astronomers after a decade of planning and construction.
The world's biggest astronomy project, ALMA is described as the most powerful millimetre/submillimetre-wavelength telescope ever and the most complex ground-based observatory.
The first images arrived at the mega-site in northern Chile from 12 of the 66 radio telescopes."