Mountain roads from Oregon to Reno

From Eastern Oregon, Hwy 95 straight down to I-80. No high passes at all.

Pretty general, but here goes. I would leave Oregon on 101 south, then take 199, I-5, 89, 44, 36, and 395. A few summits involved, but not too many "high mountain passes".

You might get a copy of the Mountain Directory West. They list all passes of concern to RVers and truckers, with descriptions of the grades, terrain, etc. Very handy item to have! Most larger camping-related stores (such as Camping World) or truck stops will likely have it.

Starting from where in Oregon??