I worked there for 2 years around 2000. I loved it, the hospital that is.
Don't drink the tap water, get bottled and you will be fine. I hated the bitter cold, but that won't be a problem for you
The people at the hospital were some of the most wonderful people to work with ever. Everyone is a little "off", but is the best way. There are always a couple of PIA's, but they are everywhere.
Butte has such a rich history, and beautiful buildings take time to really get to know the area... you will learn to love it like a Foley cath after surgery