Begining with a couple crooks in the 1860's (Crooks in San Francisco? Say it isn't so) the clinic tells the history of the railroad that ran along San Francisco's Embarcadero from AT&T Park to Fisherman's Wharf and the Presidio. From 1892 to 1992, the State Belt serviced the piers and industries all along the waterfront. It only existed to switch cars and spent a part of the 1920s and 1930s trying to convince the Supreme Court of the United States that it wasn't a railroad at all. The quintessential switching road in a historic location.