Need some clarification on your location: Provincetown, MA or Providence, RI?
If Providence, it's at least an hour's drive to the Cape, and depending on where you're going, could be at least double that. Getting to the Cape on Thursday and Friday evenings during the summer is a nightmare due to traffic. That said, Bay View Campground in Bourne, MA is a campground we like, and it's about an hour from Providence.
If Provincetown, we haven't camped that far down the Cape yet, but there are several campgrounds in the general area. Some are pretty small and tight, so do your research carefully to be sure your rig will fit.
Can't help with Rangely, ME sorry.
Rob & Kelly, Bella & Brady (Miniature Schnauzers)
2016 Eagle 323LKTS
2016 Ram 2500 6.7L CTD
2015 White Hawk 29REKS Summit Edition (Traded)