We are two active, 60 going on 30, Aussie couples that are planning a trip through Montana/Wyoming/SD and maybe Northern Colorado next June. One couple (my wife and I) have had the good fortune to work and live in the US for a few years and have seen quite a lot of your great country. We still have relatives and friends there and visit every two years or so. The two experiences we are looking for is the RV roadtrip and a visit to the Rockies. We're thinking a 30' to 32' Class A vehicle.
Our friends are experienced travellers, but have never gotten around to visiting the US. The RV hire is a large part of the trip. We know we could make the trip less expensively and maybe with less hassle, but the RV part is essential. We will almost certainly have additional time to visit a few other places at the end of the RV part of the trip but it's the RV part I need help with. We're thinking around 18 to 21 days in the RV. We all get on very well but we're thinking that amount of time in a confined space will be enough, even for close friends!
Our trip planning is in its very early stages. We're researching options that include a one way trip starting somewhere like Seattle and finishing in Denver or SLC; a loop that (for example) starts somewhere like SLC, tracks through MT and WY and finishes in Denver; or a straight start/finish in one city (say Denver) and a loop that takes us us the East side of Wyoming, a side trip to Mt Rushmore, then West across Montana to Yellowstone, GTNP and South to our starting point.
We have set a target to average 100 - 150 miles driving each day depending on suitable stopping points. Right now, my main concerns are 1) finding a reputable RV rental company - the feedback and reviews on most are not encouraging! and 2) understanding if it is worth the effort driving to and across Northern Montana. I know the scenery is magnificent but are we missing extra days at Yellowstone or GTNP by driving in Northern Montana? Also, is Billings worth a visit or to be avoided?
Once we figure out our general itinerary, I'd like to come back to get some not to be missed point to point routes.
Thanks in advance for taking the time to provide your comments and/or advice.