Even though these parks are located close together, they are both quite large, and there is not one good location to stay in to visit both parks. For the best experience, plan on staying in at least two locations: one in Yellowstone and one in Grand Teton. However, it is possible to stay in Old Faithful Village, at Yellowstone Lake, or even Coulter Bay Village in Grand Teton, to visit both parks, but you will do A LOT of driving.