| Site | Latitude N. | Longitude E. | Altitude (m. a.s.l.) | Location | Owner Country | Site | Data Source 1 | Data Source 2 | Nearest City (km, kha, masl) | Nearest City (km) | Nearest City (kha) | Nearest City (masl) | Light Pollution Index (ha/km/km/dmasl) | Site | Wind Speed @200mb (m/s 1948-2007) | Seismicity (g-50yr-10%) | |
| Dome C | -75.1 | -123.4 | 3233 | Antarctica | International | Dome C | University of Nice | Meteo | Hobart (3850,188,0) | 3850 | 188 | 0 | 0 | Dome C | 13 | 0 | |
| Grand Benare | -21.1 | 55.42 | 2896 | La Reunion Island | France | Grand Benare | ESO | Saint Paul (20,93,0) | 20 | 93 | 0 | 80 | Grand Benare | 19.4 | |||
| Tolar | -21.95 | -70.08 | 2290 | Atacama Fault | Chile | Tolar | TMT | Tocopilla (17, 23,0) | 17 | 23 | 0 | 35 | Tolar | 26.2 | 0.34 | ||
| Chajnantor | -22.98 | -67.63 | 5100 | Andes | Chile | Chajnantor | ESO-NRAO | NRO | Calama (139, 126,2271) | 139 | 126 | 2271 | 2 | Chajnantor | 25.7 | 0.28 | |
| Gamsberg | -23.34 | 16.23 | 2347 | Namib Desert | Namibia | Gamsberg | MPI Heidelberg/ESO | Windhoek (124, 233,1600) | 124 | 233 | 1600 | 20 | Gamsberg | 23.7 | 0.05 | ||
| Macon | -24.5 | -67.29 | 5000 | N-W Puņa | Argentina | Macon | Observatorio de Cordoba | ESO | Salta (193, 468,1200) | 193 | 468 | 1200 | 3 | Macon | 29.5 | 0.2 | |
| La Chira | -24.52 | -70.37 | 2559 | Atacama Fault | Chile | La Chira | ESO | Antofagasta (120, 485,0) | 120 | 485 | 0 | 13 | La Chira | 29.6 | 0.34 | ||
| Armazones | -24.58 | -70.18 | 3064 | Atacama Fault | Chile | Armazones | ESO/TMT | Antofagasta (140, 485,0) | 140 | 485 | 0 | 8 | Armazones | 29.6 | 0.34 | ||
| Paranal | -24.62 | -70.4 | 2636 | Atacama Fault | Chile | Paranal | ESO | Antofagasta (140, 485,0) | 140 | 485 | 0 | 9 | Paranal | 29.6 | 0.34 | ||
| La Silla | -29.25 | -70.73 | 2400 | Andes | Chile | La Silla | ESO | La Serena (120, 296,0) | 120 | 296 | 0 | 9 | La Silla | 32.6 | 0.3 | ||
| Mauna Kea | 19.83 | -155.47 | 4205 | Big Island, Hawaii | USA | Mauna Kea | TMT | ESO | Hilo (43,41,0) | 43 | 41 | 0 | 5 | Mauna Kea | 24.5 | 0.4 | |
| El Teide, Izaņa | 28.3 | -16.5 | 2367 | Tenerife, Canary Islands | Spain | El Teide, Izaņa | IAC | Meteo | La Laguna/Santa Cruz (30,360,0) | 30 | 360 | 0 | 169 | El Teide, Izaņa | 24 | 0.06 | |
| Roque de los Muchachos | 28.77 | -17.88 | 2396 | La Palma, Canary Islands | Spain | Roque de los Muchachos | IAC | ESO | Santa Cruz de La Palma (11,16,0) | 11 | 16 | 0 | 55 | Roque de los Muchachos | 22.4 | 0.06 | |
| Lekst | 29.8 | -9.04 | 2359 | Anti-Atlas | Morocco | Lekst | University of Marrakech | ELT-DS WP12000 | Agadir (80, 679,0) | 80 | 679 | 0 | 45 | Lekst | 24.9 | ||
| Yanbajing | 30.11 | 90.53 | 4500 | Tibet | China | Yangbajing | Lhasa 2004 Workshop | Cloud/PWV Satellite analysis | Lhasa (94,121,3651) | 94 | 121 | 3651 | 16 | Yangbajing | 26.1 | ||
| San Pedro Martir | 31.05 | -115.49 | 2980 | Baja California | Mexico | San Pedro Martir | UNAM | TMT/LSST | Ensenada (140,223,0) | 140 | 223 | 0 | 4 | San Pedro Martir | 25.8 | ||
| Hanle | 32.78 | 78.97 | 4500 | Himalaya | India | Hanle | Indian Institute of Astrophysics | Cloud/PWV Satellite analysis | New Delhi (395,12791,163) | 395 | 12791 | 163 | 19 | Hanle | 30.3 | ||
| Maidanak | 38.68 | 66.9 | 2600 | Pamir | Uzbekistan | Maidanak | Uzbek Academy of Science | ESO | Samarkand (110, 369,700) | 110 | 362 | 700 | 16 | Maidanak | 32.7 | 0.2 | |
| Greenland Summit | 72.57 | -38.28 | 3225 | Greenland Ice Cap | Denmark | Greenland Summit | ESO | Ilulissat (Jacobshavn) (600, 4,0) | 600 | 4 | 0 | 0 | Greenland Summit | 14.5 | |||