One thing that is a bit ambiguous is these statements:
" You are entitled to check-in in one piece of luggage per person. The maximum weight of each piece of luggage must not exceed 23kgs. "
and
" Rocky Mountaineer
Storage space on board the Rocky Mountaineer is limited, so please take this into consideration when packing. "
My luggage on the Rocky Mountaineer will be that same as for the flight so I assume that what ever was good enough for the plane will fit on the train?
As for clothes - I am packing for summer, plus one water proof, and one fleece.
Shoes for walking, shoes for evening. (It's a lot easier for us men!)
I'm on the 6th September trip.
Kevin