I only know of a couple of places to fish on that river, the hatchery hole (ceder creek) or the Happa (crusher) park/hole.

The hatchery hole is easy to get to; drive north on I-5 then get off at the woodland exit, and then go right at the light. You will drive through the town, past a store called fishermans Depot, (good store for gear) then drive through residental area. Eventually you will be in a farm land. The whole time you drive throught that you will be on the same road. And you will see a sign that says Salmon Hatchery right at the bottom of a little dip. and then take the right and follow that roaddown to the hole, you will see many cars parked. Pick a spot and fish. Whatever you do stay out of the meat hole. I was stupid enough to fish in that hole!!

If this does not help email me and I will send you a map
fisherjosh1985@aol.com