The long trip north has become a yearly ritual. The flight is 6 - 7 hrs. to either West Yellowstone, MT or Johnson Creek, ID with one fuel stop somewhere in the middle. In order to stay ahead of the turbulence in the mountains (which would make a long flight seem MUCH longer), it is imperative to depart the Phoenix area well before sunrise.
Typically, a 4:30 AM departure will get me into West Yellowstone just in time for lunch.
John Galban's Flying Site
Going North '08
Smooth air in between cloud decks over Northern Arizona at dawn.
The clouds cleared as I passed by the Grand Canyon on my way North to Montana.