This June 25 & 26 will be the 125th anniversary of Custer's Last Stand. According to the websites for the batlefield, museaums, and societies there are going to be some activities planned: Living history encampment, artillery demos, seminars, ceremonies, etc. Sounds pretty interesting if you are into that kind of thing (which I am).
I live in Michigan but I will be traveling with my Air Guard unit to Ellsworth AFB in South Dakota during the last half of June. I haven't worked out the details yet, but I intend to get to the battlefield that weekend.
If anyone is going to be involved, or has any other info, let me know.