| 1 | Spider | 36.000 m |
| 2 | Observatorio de la Universidad de Tokio Atacama | 5.640 m |
| 3 | Pyramid International Laboratory-Observatory | 5.050 m |
| 4 | Ali Observatory | 5.047 m |
| 5 | KU Observatory | 5.000 m |
| 6 | Monte Bianco obsertatory | 4.807 m |
| 7 | Observatorios del Llano de Chajnantor | 4.800 m |
| 8 | Indian Astronomical Observatory (IAO) | 4.500 m |
| 9 | Vallot observatory | 4.358 m |
| 10 | Observatorio Gemini | 4.213 m |
| 11 | Telescopio Gemini Frederic C. Gillet | 4.213 m |
| 12 | Observatorio Mauna Kea | 4.205 m |
| 13 | Observatorio Canada, Francia, Hawái | 4.204 m |
| 14 | Observatorio W. M. Keck | 4.145 m |
| 15 | National Astronomical Observatory of Japan Hawaii Observatory | 4.139 m |
| 16 | Telescopio Subaru | 4.139 m |
| 17 | Observatorio milimétrico Caltech | 4.136 m |
| 18 | Ridge A | 4.053 m |
| 19 | Villa Remedios Geomagnetic Observatory | 3.950 m |
| 20 | Iranian National Observatory | 3.600 m |
| 21 | Observatorio Astronómico Nacional de Llano del Hato | 3.600 m |
| 22 | University of the Andes station | 3.600 m |
| 23 | Sphinx | 3.571 m |
| 24 | ATLAS–MLO observatory | 3.408 m |
| 25 | Mauna Loa Observatory | 3.397 m |
| 26 | Observatorio Magdalena Ridge | 3.230 m |
| 27 | Entoto Observatory and Research Center | 3.200 m |
| 28 | Observatorio Internacional del Monte Graham | 3.191 m |
| 29 | Observatorio de Anatolia Oriental | 3.170 m |
| 30 | Mount Terskol Observatory | 3.127 m |
| 31 | Observatorium Sonnblick | 3.106 m |
| 32 | Observatorio de Haleakala | 3.052 m |
| 33 | ATLAS–HKO observatory | 3.030 m |
| 34 | Mt Etna Volcano Observatory | 2.940 m |
| 35 | Observatoire de Saint-Véran | 2.930 m |
| 36 | Basic Environmental Observatory - Musala | 2.925 m |
| 37 | Observatorio de Sierra Nevada | 2.896 m |
| 38 | Pic du Midi Observatory | 2.877 m |
| 39 | Observatorio Astronómico de Lulin | 2.862 m |
| 40 | Base Amundsen-Scott | 2.835 m |
| 41 | Observatorio Astronómico de Quito | 2.823 m |
| 42 | Catalina 40" Telescope | 2.791 m |
| 43 | Mount Lemmon Survey | 2.791 m |
| 44 | Observatorio Astronómico del Monte Lemmon | 2.791 m |
| 45 | Observatorio Astronómico de Apache Point | 2.788 m |
| 46 | Cloudcroft Observatory | 2.751 m |
| 47 | NASA Orbital Debris Observatory | 2.751 m |
| 48 | Assy-Turgen Observatory | 2.750 m |
| 49 | Observatorio de Oukaïmeden | 2.750 m |
| 50 | Observatorio Astronómico Tien Shan | 2.735 m |
| 51 | Observatorio del Monte Bachelor | 2.731 m |
| 52 | Gemini South | 2.722 m |
| 53 | Observatorio Vera C. Rubin | 2.673 m |
| 54 | Maidanak Observatory | 2.650 m |
| 55 | Very Large Telescope | 2.636 m |
| 56 | Observatorio Paranal | 2.635 m |
| 57 | Lomnický Štít Observatory | 2.632 m |
| 58 | Observatorio Fred Lawrence Whipple | 2.606 m |
| 59 | Observatorio Astronómico Nacional de Colombia | 2.600 m |
| 60 | Complejo Astronómico El Leoncito | 2.552 m |
| 61 | Kuiper Telescope | 2.510 m |
| 62 | Observatorio Nacional del TÜBİTAK | 2.500 m |
| 63 | Thai National Observatory | 2.457 m |
| 64 | Devasthal Observatory | 2.450 m |
| 65 | Observatorio de La Silla | 2.400 m |
| 66 | Observatorio del Roque de los Muchachos | 2.396 m |
| 67 | Observatorio del Teide | 2.390 m |
| 68 | Observatorio Las Campanas | 2.380 m |
| 69 | ATLAS–TDO observatory | 2.370 m |
| 70 | Telescopio Jacobus Kapteyn | 2.369 m |
| 71 | Observatorio Félix Aguilar | 2.348 m |
| 72 | Table Mountain Observatory | 2.285 m |
| 73 | United States Naval Observatory Flagstaff Station | 2.273 m |
| 74 | Altitude SEE Test European Platform | 2.252 m |
| 75 | Red Buttes Observatory | 2.246 m |
| 76 | ISON-NM Observatory | 2.217 m |
| 77 | Observatorio de Cerro Tololo | 2.207 m |
| 78 | François-Xavier Bagnoud Observatory | 2.200 m |
| 79 | Estación Astronómica de Cerro El Roble | 2.185 m |
| 80 | Observatorio de Calar Alto | 2.168 m |
| 81 | Observatorio Astrofísico Nacional de Tonantzintla | 2.166 m |
| 82 | Estación Anderson Mesa | 2.163 m |
| 83 | Braeside Observatory | 2.152 m |
| 84 | SARA-KP | 2.133 m |
| 85 | Campo Imperatore Astronomical Observatory | 2.129 m |
| 86 | SARA-CT | 2.123 m |
| 87 | Observatorio de la montaña del Cáucaso Daesh MSU | 2.112 m |
| 88 | Batabat Astrophysical Observatory | 2.100 m |
| 89 | Observatorio Nacional de Kitt Peak | 2.096 m |
| 90 | Observartorio McDonald | 2.077 m |
| 91 | Kislovodsk Mountain Astronomical Station | 2.070 m |
| 92 | Big Bear Solar Observatory | 2.060 m |
| 93 | Ka-Dar Observatory | 2.060 m |
| 94 | Sinnott Memorial Observation Station | 2.027 m |
| 95 | Dushak-Erekdag Observatory | 2.020 m |
| 96 | Yunnan Astronomical Observatory | 2.014 m |
| 97 | Observatorio Astrofísico de Javalambre | 1.957 m |
| 98 | Pico dos Dias Observatory | 1.864 m |
| 99 | Hakos Observatory | 1.852 m |
| 100 | Observatorio Astronómico de Fountain Hills | 1.850 m |