Blue Mesa Observatory was created in 1967.
Blue Mesa - album - was created in 1989.
Blue Mesa Reservoir was created in 1965.
Blue Hill Meteorological Observatory was created in 1885.
The area of Blue Mesa Reservoir is 37.15 square kilometers.
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.