I was looking at a Mapquest map just now and my instincts, not knowing, would have been to leave I-5 at that Merlin cutoff and take Merlin Rd west or Monument Dr. south (whichever one comes out of the freeway) to Galice Rd. and then west to Galice and Agness.
Those are marked "Nf-23 and Nf-33, as well as Blm38-4-36" or something like that (from memory on the BLM one). That must mean those are National Forest roads and a BLM road.
Then, towards the coast, it's marked 595. It follows the Rogue River all along. Looks treacherous to me, just the way it meanders on the map!
However, it *is* the straightest shot from I-5 at Roseburg to Gold Beach.
Bless their hearts.
NF means National Forest Service and I suspect these are nothing but glorified logging roads. You are right about the Rogue River Road. I have read recreation/fishing stories about this road and warning it is not recommended for larger recreation vehicles...
Very good! Do you have a link to the mapquest map where you were looking?