King

I've never personally fished jigs in the Cowlitz either but I've received a lot of feedback from people that fish there on a regular basis. Steely coverd the basics for you. Stick with popular color combinations such as Purple/cerise, red/black, pink/white and you'll be fine. Adding a shrimp tail or other bait is a good idea. Keep your jig a few feet off of the bottom and you should be into fish.

Mark