Time for some correction and Silicon Valley cultural education:

Mountain View is spelled with two words. It's where Google's HQ is located (right next to the Ampitheater Parkway and along the same road next to the AMC Century 21 theaters and used to be the main HQ for the now defunct Silicon Graphics Inc (SGI). That office is where my old buddies and I used to hang out in the meeting rooms to gather together and watch movies on their BIG *** giant digital projection screens every Friday night (we were asked to bring two DVD's with us and we'd all vote to watch two of them that evening from the array).

I lived there for five months at a friend's house before I got my first apartment in Santa Clara nearby. The significant cities to know in and around the Silicon Valley included San Jose, Milpitas, Santa Clara, Sunnyvale, Cupertino, Los Gatos, Mountain View and Palo Alto. To some lesser degree, although they're not really part of Silicon Valley, sometimes the cities around them or up through San Francisco and even sometimes Marin County are mistaken as being part of Silicon Valley (like Redwood City and Daly City and so on) because they also have a large tech industry in those cities as well (i.e. Redwood City is home to Broadcom and used to be home to BeOS and @Home).

Also.. the shorthand for California is a two-letter code of "CA" (so, Mountain View, CA, is appropriate whereas Mountain View, Calif, doesn't look right (i.e. never used in any official way). If you're trying not to confuse it with Canada's two letter '.ca' for domain names, you might even add "Mountain View, CA, USA. But then, I don't think anybody would confuse Mountain View as being in Canada if it's about Google and moreover if you're referring to the state instead of a province. i.e. Maple Ridge, BC, is hard to confuse with any US city and state).

Hope that's helpful despite sounding like an anal-retentive jackass, which I recognize that I probably am. :P