101 SOUTH FROM OLYMPIA TO REDWOODS

Better yet IMHO continue down the coast spending a couple of days in the northern Redwoods, and then head north toward GrantsPass. Don't forget the Oregon Caves. At Grants Pass you pick up I5 south. I would stop at Valley of the Rogue State Park for a couple of days. Historic Jacksonville is only a few miles away. This is where gold was first discovered in southern Oregon and a well preserved town. Also don't miss the Oregon Vortex. At the north end of Medford turn up toward Crater Lake.