Oregon has some great roads. Hwy 82 from Elgin to Enterprise has some very nice curves and runs in part along a very pretty stream and valley, but it is way north. Hell's Canyon is a tricky ride. The road is in lousy shape, with no centerline and we took it on a sunny day in the late afternoon when road was in partial shadow. We could not see a darn thing and consequently hit some nasty holes and bumps. We had to go slow and fortunately, we saw few cars but with no centerline, they could easily be in your lane on a curve. If you want to do the Canyon NRA, do it at mid day with the sun high and with the road surface visible so you can avoid the damaged surface and stay in your lane.
Baker City east on Hwy 86 is a great ride, but not long. It runs to Oxbow Dam.
Hwy 55 and Hwy 95, south and north of McCall, is a fun ride. McCall is fun also. if you work you way to I-90, run the east side of Lake Couer d' Alene. It is twisty and scenic. Stop and enjoy the fun cafe's along the way northward.
North of Crater Lake, do the road around the crater, Hwy 97 runs through Bend (great micro brew tavs) to Redmond. Fun town. Then east on Hwy 26 to Baker City.
Enjoy.
Road Hog