The High Road entrance is composed almost entirely of a highway that once cut through the center of Hopeville. It is now a ruin, complete with fallen skyscrapers and abandoned vehicles. The highway is, for the most part, contiguous, with just a few deadly gaps.
xbox360 If you fast travel to any of the locations in the High Road section of the Lonesome Road (add-on), there is a small chance a deathclaw will spawn. This Deathclaw appears on your compass as the usually red blip, but is no where visible until your character passes a certain area. This Deathclaw seems to have increased damage as it can easily kill a level 50 player in one hit. Going through the Collapsed Overpass Tunnel seems to solve this problem, but save before you fast travel.