late here , but some info, if your current sled is registered in your state, its good in SD< but its NOT when you go into WY< to go into WY trails you need a WY trail pass!
and a heads up to anyone renting sleds in Blackhills, most rentals company's DON"T offer insurance on sleds, or never used to, so if ANYTHING happens, its ALL out of pocket on YOU!
its not like many other places that add a insurance deal for a few bucks extra a days that covers all but deductible
just some FYI here for you
its a great place to ride, scenery can be awesome when conditions are good!