The good ones may be gone, but check out homeaway or vrbo (I think the two may be related somehow) and see if there are any cabins available somewhere. My wife and I will be renting a cabin for a few nights that weekend, and I'm really looking forward to this trip - a few days of sightseeing in Colorado (funny how easy it is to ignore your own state when looking for places to go) without worrying about loads, all in a gorgeous setting.
Bookmarks