Blue Mesa Observatory was created in 1967.
Blue Mesa Reservoir was created in 1965.
Blue Mesa - album - was created in 1989.
Blue Hill Meteorological Observatory was created in 1885.
The area of Blue Mesa Reservoir is 37.15 square kilometers.
Morris Observatory was created in 1973.
Macfarlane Observatory was created in 1757.
Moore Observatory was created in 1978.
Behlen Observatory was created in 1972.
Jura Observatory was created in 1993.
Detroit Observatory was created in 1854.
Sphinx Observatory was created in 1937.
Armagh Observatory was created in 1789.