There are two Facebook pages to join:
This one is explicitly housing.
This one has a little of everything
But, as oldmanski said, options are limited and housing is very tight. Long time seasonal workers with plenty of local connections are having a really hard time finding a place to live this spring. Three or four years ago, this time of year we'd all know a couple of people with open rooms trying to fill them. This spring most of us with housing have three or four people we're trying to help find housing for instead. It's brutal. The hill has built more affordable housing recently, but you've got to work for the hill, and I'm sure it's in high demand.
That said, welcome to Driggs, what's your gig?