Road is easily accessible all the way up. Some of the camp site access roads are rougher than others but saw plenty of 2WD, sedans and trailers on the road. VERY popular location so sites become limited pretty early in the day. We had people trolling by our site already looking to hold a spot just after sunrise. Very helpful camp ambassadors. Will tell you where open spots are if you see them riding around in sxs. Misquotes were worst I’ve ever experienced… but we still had a good time. Bring plenty of spray and keep your tent closed. Absolutely worth it. Easy access to Tetons and Yellowstone.