From the summit of the Cascade Range westward to Sandy, the Mount Hood Loop Highway is in substantially the same location as the Barlow Road, though modern engineering has solved some of Samuel K. Barlow's greatest difficulties. East of the summit the Barlow Road has been in disuse for many years for a considerable distance down the eastern slope, especially where it traversed the canyon of White River. The Oak Grove Road from Salmon River Meadows to Wapinitia was not a part of the original Barlow Road, though frequently spoken of as such.