I have actually parralelled the crest trail from Crescent Lake, south of Bend Oregon, North to the Columbia. It is late and I would need to dig out the maps. Much of the route is paved forest service road, often one lane,some is gravel or dirt, some is highway. You need the forest service maps for each Natl forest you pass thru, they are the best source of reliable info. Beware of logging trucks and check the fire situation, particularly in Central Oregon before you go.