you are not that far off
Looks like the high desert maybe... you mentioning doing work at a plant has me thinking Palmdale/Lancaster.... or well a lot of places far and wide really.... hey... whatchya doin' up there in one of those "plants"...

Edit: Looked it up, wasn't too far off... (where did all the smog/fog/haze go?

), it's close to where Pigs said it was, but it's as close to "between" Bakersfield and the Bay Area as San Lui is.