Originally Posted by
Seat 2A
As to the enroute stops, you correctly identified twelve of them, in correct order no less.
One of them, I would guess, is Riverton WY. Strangely, this small point used to be a Frontier hub, going back to the 1950s when Frontier was an all-DC3 operation, and was due to the US Mail contracts. Twice a day in those early days, Frontier flights had long come in together from Denver, Salt Lake and Billings, via a whole string of intermediate points, exchanged the passengers and mail in a few minutes across the ramp, and then moved on