Just back...Done several trips to Yellowstone in early October. Always pretty, always good weather, always no big crowds. The only Joker in the deck is hotels are hard to come by on Columbus Day weekend, especially in W. Yellowstone. Reserve early
We were in Idaho Falls visiting my sister, so me and my dad went up to Yellowstone for a day. We hit Norris Geyser Basin, the brinks of the Lower Falls and the Upper Falls, and Old Faithful. Lots of tourists on the roads.
I had been to Yellowstone twice before, and it never, ever gets old.