Along the frontage road, the original HCRH alignment appears to be just south of the current road. There appear to be some traces of old highway in the woods before the Herman Creek Campground and there is the Government Cove Fragment eastbound from the ranger station.
Includes ... Herman Creek ... Herman Lake ... Government Cove ... Herman Creek Trail ... Herman Creek Ranger Station ... Columbia Gorge Ranger Station ... Oxbow Hatchery ...
http://columbiariverimages.com/Regions/Places/herman_creek.html