Astronomy Mount Diablo Astronomical Society
(Walnut Creek) Welcome to the Mt. Diablo Astronomical Society. M.D.A.S. was formed in 1957 as part of the National "Moonwatch" program established to time the first man-made satellites so accurate orbits could ...
http://www.mdas.net/
California: San Francisco Bay Region: Contra Costa County: Walnut Creek: Science and Humanities 
