I hate to admit it but I have never been to Yellowstone or the Tetons but that is going to change this year. I have two months off this fall and I plan to make the best of it but I would appreciate some help. I know this varies from year to year but when is the best time for color? I am planning to be there around the 15th of September and stay for 3 weeks.

Thanks for any advice you can provide.

Don