There is a microwave in the Roaring Forks. When we were there, my DS needed his baby oatmeal warmed up so every morning I took the quick elevator ride down to microwave it. If you're room is close by to the Roaring Forks, you could use their microwave, but if you're room is further away, I would use a big cup of warm water or a bottle warmer. How will you warm up the bottle while in the parks?
-Karen