I spent a few years out in Rapid City SD at Ellsworth AFB. I volunteered at Fort Laramie, WY and did events with the 3rd US Vol "Galvanized Yankees" at Fort Casper, WY. I even went up to Fort Union trading post in ND. and to Fort Hartsuff in NE or Grand Island, NE. There is even a Gettysburg SD that had an annual event. The Frontier Army of the Dakotas had a lot going on too. I had a great time out there but the only down side is the long drives to events.
I was also a member of General Miles Marching and Chowder Society which portrays Indian Wars Infantry.
I really wanted to do gold rush living history in the Black Hills but at the time there was no venue for it.