Long list but here you go: Des Moines-Souix City-Omaha-Kansas City. Hwy 71 to LA via Ft Smith AR and Texarkana, Rodessa LA, Atlanta TX-Paris-Whitchita Falls-Amarillo TX. Hwy 64 across New Mexico (the most beautifull road I've been on, ever)-Cimarron-Taos-Farmington-Kayenta, AZ. North to Mexican Hat-Hanksville-Salina and Hwy 50 to Reno, via Ely (nice cascino hotel downtown). Layover day in Reno and toured Lake Tahoe. North to Susanville CA through Lassen Natl. Forest to Mt Shasta (beautiful ride) to Eugene OR. Turn right on 126 to Redmond OR-John Day-Walla Walla WA-Lewiston ID-McCall ID (to see friends)-Lolo and Missoula-Livingston MT. To Yellowstone and Red Lodge, then 94 to Baker MT and Hwy 12 through N and S Dakota-Aberdeen to Rochester (home).
On most of the two lane roads I was the only vehicle, so it was very enjoyable. Could go any speed I wanted and could pull over (usually stay right on the road) whenever I wanted.
http://www.postbulletin.com/newsmanager/templates/localnews_story.asp?z=21&a=469255 This link shows the newpaper article our paper did on the trip--pretty neat.