I was guessing Garibaldi, Oregon, USA. Been through there once, but I pretty much figured out I was on the other side of the sphere and on the outside looking in.
Great post and pics! 
Similar stacks, but probably very different uses, haha.
Back in it's hey day, they mind in Mount Morgan had quiet a few stacks from what I've read/seen.
Unfortunately it shut down before my time. I would have loved to have seen it fully operational though.