We've encountered tent sites in other National Parks that don't allow you to bring a car onto the camping area - there are barriers so that you have to carry your tent onto the site. While our teardrop is light, I don't think we want to lift it up and carry it anywhere!

So, does anyone know at the various campsites in Yellowstone if you can drive your car onto them? Looking at the primitive or tent designed sites mostly, not looking at the RV parks.