Copalis Crossing Rd. which ties into Copalis Beach Rd. goes out to Hwy. 101. The hatchery is just before 101, lots of bankies fish there (opposite side of hatchery).
There are other places prior to the hatchery if you spot any other vehicles parked along the Crossing Rd. or if you recognize spots that looked like it's been used for parking check it out.

Wash. Atlas & Gazetteer Pgs. 59-60
Luck.....><>