Ron, We have gone twice to Yellowstone, once to Teton. I would spend as much time as possible in Yellowstone. We enjoyed our stay at Teton as well, but we were canoeing then. More varied things, landscapes to see in Yellowstone. Tetons could be seen on a day trip and/or as you leave.
Fishing Bridge did not appeal to me at all, more cramped, more big rigs, but to each his own. Not our style at all. We just went to the non-reservable areas. Therefore, I would say, go for one of the non-reservable sites. Fishing Bridge's main draw is hook-ups. Many of the other campground are reservable. But in August from what I have been told, one does not need one.
As for your dogs, I wouldn't think it would be so hot one would need to leave the A/C on to leave them in the trailer alone, maybe just a small window & a vent opened. Or take them, leaving windows
We stayed at Grant Village, the last time we were there, it is huge but nice campground. At the time it was all without hookups...my son stayed at Canyon and it was very nice, maybe smaller. I would believe I would try it next time. The Nat'l Park web site list what each has and has not, number of sites, hookups or not, etc. There was another one on the west side, I would consider, Norris. The first time we stayed at Bridge Bay in '86.
The ones without a Dump Station, I mark off for us. And would like Flush toilets as well, but can go without. Some are harder to get huge RVs into, maybe nice for our little guys and less crowded.
To see the Park, there is a lot of driving. Perhaps, move the base camp would be good at least once.
We stayed at the Colter Bay Campground in the Grand Tetons, not the one with hook-ups. The Colter Bay Visitor Center and Indian Arts Museum by the Colter Bay Campground is really a neat one. http://www.gtlc.com/campgrounds.aspx
Have you read these older posts: http://www.fiberglassrv.com/board/index.ph...owstone+Camping
Hope you have a good visit there, we are planning on a trip back next summer.
Edit add: The US does have a pass system, somewhat like Canadian Nat'l Parks, but without as much added side benefits as the Canadian. We bought one when at Jasper and used it at Banff & Waterton as well. Then sold it to a Texian going to Alaska in Glacier.
The US Pass is called: America the Beautiful – National Parks and Federal Recreational Lands Pass – Annual Pass - Cost $80.
– Annual Pass
This pass is available to the general public and provides access to, and use of, Federal recreation sites that charge an Entrance or Standard Amenity Fee for a year, beginning from the date of sale. The pass admits the pass holder/s and passengers in a non-commercial vehicle at per vehicle fee areas and pass holder + 3 adults, not to exceed 4 adults, at per person fee areas. (children under 16 are admitted free) The pass can be obtained in person at the park, by calling 1-888-ASK USGS, Ext. 1, or via the Internet at http://store.usgs.gov/pass
Infomation from: http://www.nps.gov/fees_passes.htm
It just says general public for this one where as the Senior & Access Passes say for U.S. citizens or permanent residents. One would have to check if it would save you some cash by getting one & if Canadians can do so.
The Annual Pass I see does not have the a 50 percent discount on some Expanded Amenity Fees charged for facilities and services such as camping, swimming, boat launch, and specialized interpretive services like the Senior & Access Passes. Even with them it says: In some cases where Expanded Amenity Fees are charged, only the pass holder will be given the 50 percent price reduction. The pass is non-transferable and generally does NOT cover or reduce special recreation permit fees or fees charged by concessionaires.
It does not say the Annual Pass is non-transferable. Canadian were transferable from what the man told me in Jasper.