^^ That is a picture of what's left of the old Denver City Mine ore bin looking like it wants to just fall over and die already.
You can see this poor old ore bin for yourself if you visit Leadville, Colorado, and go for a stroll on the mighty Mineral Belt Trail, an 11.6-mile paved pathway that follows old narrow-gauge railroad grades left over from Leadville's mining boom days. The ore bin is located somewhere around mile marker 4. I think.
That rusty metal chute is presumably how ore got from the bin above down to rail cars waiting below, but that of course assumes that gravity worked the same in the late 1800s as it does right now.