Dropped off our 18ft travel trailer and spent the day in Grand Canyon Natl park. Located right outside the park as mentioned, the sites are spacious and the road manageable for all types of vehicles or RVs. Even gave us shelter from the latest wind storm that seems to be battering the US this month. Since we camped during high winds all flights were grounded, bonus! Don’t be discouraged by the closed campsite signs at the start, keep going, lots more available.