We starrted to drive part of the Denali Highway from the east to west a few years ago. It's just about all gravel and when we were on it the surface was very badly washboarded. Of course that depends on when the last time they ran a grader over the road, bur we decided not to take it. We were only in the toad, and had left the Bus elsewhere. Also, while we were stopped enjoying the scenery a LARGE tour bus blew by us at about 50mph. No damage, but I wouldn't have wanted to meet that guy on the road driving the Bus. We're not unfamiliar with Alaska, as this summer will be our 9th trip up and we have driven the Dalton to Prudhoe Bay.