Los Altos Rod and Gun Club is off of Skyline Blvd. the easier way to get there from SF is
exit 85 S towards Gilroy
Exit Saratoga Ave. make a left toward downtown Saratoga
the will put you on Highway 9 and Highway night hits SKyline make a left and you will find it on your right.
Hope that makes sense. But it is a bit of a drive from SF. I would say 1 1/2 hours. Its a nice place, not really set up for prone shooting either. longest rnage is 100 yrds. but they have tin can alley.
also, about 20 minutes closer is the Sunnyvale Gun and Rod club in Cupertino. 280 s exit Foothill Express way and make a right. you will see it on your right hand side just as you pull up to the quarry and the resevior. not as many shooting stations as Los Altos, but you can shoot prone. and the variable target distances. No tin can alley.
hope those directions help