Ditto on what FlyFishMich said.
Those small creek mouths in your area can be a bonanza, especially during the spring when smelt and alewive come in to spawn.
If you are ever going to reap huge rewards I would hazard to say late Feb, March, and April should bring best results.
You may also hit some in the fall looking for rivers to run up and spawn in, fall salmon are not as agressive of those hungy spring salmon wolf packs.
Good luck when ever you go.