The West Coast of the South Island was once the site of a gold rush. People came between 1864 and 1867, just after the gold in the Victorian gold fields started to run out. This place was pretty different to Central Victoria though (ie. It’s cold, wet, and a jungle).
When the gold ran out, people looked to mine other things, and coal was one of those things. On top of the plateau behind the village of Waimangaroa is the former mining town of Denniston.
The mine was worked from 1880 all the way to the 1960s. Nowadays, Denniston has been listed as a heritage site. A lot of the site is in ruins, but you can still tell a lot from the ruins.
There’s also plenty of signage to show how things were once.