The family and I are planning a trip through Yellowstone national park on our way to Lewistown MT. We have only been there in the midst of winter on a snowmobile tour in West Yellowstone a few times and would love to see everything green instead of white this time around. We plan on camping in a tent trailer for one night and taking a short tour during the morning the next day.

Have any of you been? Can you recommend any campgrounds? And, what are some of the must see sights?