University of Tokyo Atacama Observatory (TAO)
Elevation: 5,640 m Location: Atacama Desert, Chile
Chacaltaya Astrophysical Observatory
Elevation: 17,160 ft (some gear at 17,600 ft) Location: Andes, Bolivia
James Ax Observatory – Polarbear
Elevation: 5,190 m Location: Atacama Desert, Chile
Atacama Cosmology Telescope (ACT)
Elevation: 5,190 m Location: Atacama Desert, Chile
Shiquanhe Observatory
Elevation: 5,090 m Location: Ngari Plateau, Tibet
Chajnantor Observatory – ALMA, APEX, QUIET, et al.
Elevation: 5,090 m Location: Atacama Desert, Chile
Chajnantor Observatory – ASTE, NANTEN2
Elevation: 4,800 m Location: Atacama Desert, Chile
Large Millimetre Telescope Alfonso Serrano (LMT)
Elevation: 4,580 m Location: Sierra Negra, Puebla, Mexico
Indian Astronomical Observatory
Elevation: 4,500 m Location: Mount Saraswati, Ladakh, India
Meyer-Womble Observatory
Elevation: 4,312 m Location: Colorado, United States
Yangbajing International Cosmic-ray Observatory
Elevation: 4,300 m Location: Yangbajain, Tibet…