Apple Springs is a new development being built in Boulder Canyon. The development is being built on an 18 hole gof course and it is very beautiful up there! You are halfway between Sturgis and Deadwood so I suggest looking in those two cities for employment. An HR degree is very useful and I'm sure you won't have any problems finding employment. Also, the Homestake Gold Mine was recently converted into a National Science Lab and I'm sure they are hiring too.
The weather here is MUCH better than in Minnesota. I have experienced both and I'd take -20 in the Black Hills over -20 in Minneapolis any day! Minnesota's winters are very wet and that causes it to feel much colder than here in Rapid City where it is dry. Also, summers are not as brutal because we have dry hot summers while yours are humid and buggy.