Colorado Iron Works Mill This rod mill (?) was made in Denver Colorado at a factory now buried by condos. #justdenverthings Similar Images ...based on the tags: dirty, machinery, mills, rusty... These copulas made the iron for casting. A one-of-a-kind installation in Armour’s otherwise gutted engine house. Behind the main shaft is this familiar industrial sight… a running count of days since the last injury. Judging by the bed, this room was used by employees in its later years. The end of the monorail in the nitrating house. Off the beaten path is this old LTV sign. Now it points to a ghost town and dead dock. These machines circulated water through the powder from the ball mills. Gold and silver is heavier than gravel, so it sinks while the junk rock floats. A scrapped steam turbine, perhaps. In the background you can see a gutted casing for another turbine. An original, minimally remodeled bathroom above the cafeteria reminds us what the whole complex once looked like.