Please use 356 1st Street, San Francisco, 94105 as our address when getting maps or directions online. Our building is at the corner of Harrison and 1st, but our parking lot is only accessible from the left lane of 1st Street (which is one-way). Once in the parking lot, go up the metal stairs to the rear doors, and follow the San Francisco Rock Project signs two floors up to the Mezzanine Level.
Get off at Montgomery Street Station.
Walk down Market to 1st Street (toward the bay).
Turn right onto 1st Street, walk up 1st until you pass Folsom. We are on the corner of 1st and Harrison.