Killer Wheel This mean-looking thing had a purpose, probably, but that function has been lost to decades of expansion. Similar Images ...based on the tags: barrels, catwalks, circles, gears, machinery, rivets, rusty, staircases, yellow... Fall in line, act skinny, watch out for low hanging pipes. Don’t ask me where in the maze this was… 90% of the plant looked like this; vast rooms and catwalks with crisscrossing pipes and valves. A steel powder keg serves as a door prop on the static-proof wood core floor. Note the ‘XXX’ marking to the left of the double door. A closeup of the now-scrapped steel chute. Rust undermines the decade old graffiti on the steel bin. In the soft wood of the machine, an employee left their mark. An impressive message for graffiti in a Detroit warehouse, but then again look at these steam pumps. Over-built and under-appreciated. 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. “But everyone I used to know was either dead or in prison So I came back to Minneapolis this time I think I’m gonna stay” -Tom Waits A rooftop scene.