San Francisco: Looking north on Stockton Street from above the north portal of the Stockton Street Tunnel. In the foreground, a trolleybus is northbound on route 30-Stockton, while in the middle of the photo another trolleybus is eastbound on Sacramento Street, on route 1-California. Route 30 is one of Muni's busiest routes, and at least five more trolleybuses are visible in the background (albeit, one being on a training run).
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