The rough route I'm thinking of right now can be found at the link below. I hope to visit my friend near Salt Lake City on the way out to Minneapolis this time. After I cross the mountains east of Salt Lake City I'll be flying in what I call "the land of the great flat". This will be my first flight as PIC east of the Rockies. Chris and I will be flying near Devil's Tower in Wyoming and around the Grand Tetons in Idaho on the way to see Rob. I'll find a CFI in Idaho Falls to do a quick familiarization flight with the Grand Tetons before I try to tackle those mountains directly.
Flight Plan at SkyVector.com
I've been researching general weather trends in both the midwest and Idaho for that time of year and it seems to me there's a 50/50 chance of being able to make this full trip in any specific week in the spring and probably a 75% chance of being able to make the Idaho / CA only trek. Aside from early spring thunderstorms, late winter blizzards and lower freezing levels than I am accustomed to, I wonder what other potential adventures await!