Mont Mégantic Observatory was created in 1978.
Mont Fitness was created in 2010.
Mont-Joli was created in 1880.
Mont-Terrible was created in 1793.
Rose Mont was created in 1842.
Haleakala Observatory was created in 1961.
Dearborn Observatory was created in 1889.
Kiso Observatory was created in 1974.
Stellafane Observatory was created in 1924.
Steward Observatory was created in 1916.
Union Observatory was created in 1903.
Erbil Observatory was created in 1973.
Sherwood Observatory was created in 1970.