why not take 195 south out of Spokane, no passes. Pick up 95 at the top of the hill above Lewiston, Idaho, then stay on 95 till you get to I84 at Fruitland, Idaho. You can stay on 95 into Nevada or head east on I84 to Twin Falls and go south on 93. You can check Washington department of transportation for road reports and Idaho road reports at 511.idaho.gov there are cameras that you can check the actual pictures of places that could be an issue when traveling. I have traveled all of this route and as long as you check road conditions and weather you should have no trouble. 195 in
Washington and 95 in Idaho are 2 lane tho. Rv parks are open in Lewiston, Idaho.
