Colter Bay campground does have some electric spots on Loop J. They have about 10 of them and reserve a number of them, three or four, for folks with disabilities that need electricity to cope. Otherwise, it's a great campground right in the middle of Grand Teton National Park about five minutes from Jackson Lake. Doesn't take reservations, but if you show up around 9:30-10:00 am right before the 11:00 am checkout time, you'll almost always find a good spot. We have been doing that in our FW since 1993 and have only been disappointed one time, and that's when the side of the campground with the larger spots was closed, about three years ago, for construction of a new and improved water supply system. We stayed at Gros Ventre and I didn't like it as much as Colter Bay, but did watch and photograph a couple of Moose wander through our campsite less than five feet from the FW entrance door. Most of the Colter Bay sites on the larger side are pull-through which makes it quite easy to get parked and set up. Seemed to me that a lot of the Gros Ventre sites were back-in with a few trees that could make it a little harder to park, although we did make it with no damage or problem. Only other problem with Gros Ventre is that it is on the far end of GTNP and that makes it a little harder to get where you want to go in the Park. However, if you wish to take in Jackson, Gros Ventre would be the place to be since it's a short trip to Jackson and all the traffic that comes with it. If you do get into either one of these places, try to get to Jackson and see the Bar J Wranglers outside of Jackson toward Teton Village. Decent food and great entertainment for a reasonable price. Both Colter Bay and Gros Ventre are park campgrounds so they take the Senior Pass and parking was $13 per night at either one of them. The Colter RV park is around $60 per night and gives a very small, I think $5, discount for the Senior Pass. As well, Colter Bay has a fairly nice general store and a couple of restaurants, a pay shower, laundry area and a marina, of which Gros Ventre has none. If you want to see some pictures, private mail me and I'll send you some.