Yep! Should be a pretty drive - lots of national forest. The downside to that is that there are a lot of stretches of nothing.
I think I have it figured...thing I'll likely stop in Ogden, UT the first night and Pendleton, OR the second. It makes the second day a bit long, but not horribly so, and should get me in by early afternoon at the lastest on Tuesday.
Just cuz it says forest doesn't mean there are trees ;~D
I remember most of S Idaho and all of Eastern OR to be brown high desert sage.