We are arriving in DIA on the 19th and will be staying in CO until the 28th. We will be driving from DIA to Grand Junction (where I was born) and then heading back to DIA and staying a lodge along the way. When we arrive my son will be 4 he wants to see dinosaurs and snow (even if it is a little bit) do you think we will have any luck? Also, we have heard that a lot of places close in October and places we should avoid or go to as a must this time of year? Thank you any input will be helpful.