Assuming this question pertains to the Los Angelos location, it is in Los Angelos California, address 2800 E Observatory road. The phone number is 213-473-0800.
The web address of the Griffith Observatory is: http://www.griffithobservatory.org
The address of the Griffith Observatory is: 4800 Western Heritage Way, Los Angeles, CA 90027
No. Mt Wilson observatory is in the San Gabriel Mountains and the Griffith observatory is in the Hollywood Hills. www.mwoa.org
The phone number of the Griffith Observatory is: 323-664-1181.
Griffith
Zona 22 - 2006 Griffith Observatory was released on: USA: 11 December 2006
19 miles
Ultimate Cake Off - 2009 Griffith Observatory 2-5 was released on: USA: 1 March 2010
The web address of the Lowell Observatory is: http://www.lowell.edu
The web address of the Cincinnati Observatory is: http://www.cincinnatiobservatory.org
One Observatory Circle
The web address of the Goldendale Observatory is: http://www.parks.wa.gov/parks