Superior Elevator- Ruined Skyway Looking across the ruined skyway that connects the two elevators. I wanted to walk across it, but my exploring parter held me back. Related Similar Images ...based on the tags: collapsing, sheet-metal, skyways... The pipes above sprayed water onto the hot coke. In the mountainside are a number of air shafts, indicating where the tunnels traced under the rocky surface. Mammoth Mine overlooks Central City from atop Mammoth Hill. In the distance you can make out Coeur d’Alene Mine (red), which operated from 1885 through 1940. The skyway’s steel substructure collapsed slightly, crushing part of the dust collectors. Below the factory floor is a network of hallways and tunnels, all flooded with water. A rooftop scene. If you look closely, you can see the rain dropping into the building. This is the part of the chapel with the collapsed roof–not the carvings on the choir loft. The powerplant and its dedicated water tower supplied steam for heating and mechanical work. The concrete annex elevator had interesting graffiti. Much of it from the 1980s and 1990s.