trackside establishments even before the completion of the First transcontinental railroad. , save for those of the Santa Fe, who relied on America's first interstate network of restaurants to feed its passengers en route. The "Harvey Houses", located strategically along the line, served top-quality meals to railroad patrons during water stops and other planned layovers and were favored over in-transit facilities for all trains operating west of Kansas City. The Super Chief included dining cars, staffed by Fred Harvey Company personnel, as part of its standard consist from the outset. In general, the Super Chief operated 36-seat dining cars, although most of them were convertible to 48-seat dining cars with a flip-top (or change of) table and addition of chairs. Dining cars almost always operated with a lounge car coupled to them for bar-lounge service and a waiting area when the dining car was full. Unlike the Union Pacific "City" trains, the Super Chief and other Santa Fe trains did not use the "twin-unit" dining cars. Santa Fe, in general, ran somewhat shorter trains that could be serviced with a single dining car (although the heavyweight trains frequently operated in several sections, the streamlined trains generally did not). The height of Super Chief lounge and dining facilities came in 1951 with the new 600-series Dining Cars bracketed by the 500 series Pleasure Domes in front and a bar-lounge-dormitory unit in back (moved from the front of the trains). The train still operated with the Vista-series 4 Drawing Room, 1 double bedroom observation cars on the rear, albeit without any bar or buffet service. The bar-lounge cars next to the diner always included dormitory space for the train crew (a staff of 3–4 cooks and 6–7 waiters) required for the two-night-and-one-day trip. The eight Pullmans on the train had a capacity of 150–200 passengers when full but often ran with single-occupancy rooms, making the passenger load less. When Santa Fe rolled out its new "Pleasure Dome"-Lounge cars in 1951, the railroad introduced the Turquoise Room, promoted as "The only private dining room in the world on rails". The room accommodated 12 guests, and could be reserved anytime for private dinner or cocktail parties. The room was often used by celebrities and dignitaries. As was the case on other railroads, dining car service was a losing proposition financially. Santa Fe, more than any of its competitors, took the concept of using on-board