Pipes Down -- Snaking across the Mountains of Colombia, near Cundinamarca, is this government-owned pipe line carrying fuels from the Rio Magdalena to Bogota. The cleared right-of-way for the eight-inch line has formed a new mule trail for isolated farmers in the Andes. All over the world, similar pipe lines keep the life blood of industry flowing. September 16, 1955. (Photo by United Press).