Autumn is my favorite season. With kids in school, work and other family obligations in general, it is not practicable for me to backpack this time of year. In hopefully the not too distant future, I will have the extra time to make some fall trips. Down here in San Diego, fall color is very subtle, but you can still feel the change in the air.
It would also be a nice time of year to visit my brother where he lives near Ketchum: http://www.sunset.com/sunset/travel/art ... 40,00.html