Garnett is old mining town. Has many of the ghost towns in Montana are. Many of them started in the 1850s during the goldrush is shutdown and then came back again in the 1930s as this one dead when the price of gold went out. Some of the towns also mined minerals and other things from the rock.
I have to admit that I was brought to tears a few times walking around this town maybe picking up on some of the spiritual or supernatural energy from those that lived here in the past. or maybe just happy to be there. But, it was quite an experience.