I don't know the unit. There's a couple of threads on Washougal that you can read if you use the search function at the top of the page.
Like anywhere, ML season can be tough. The bucks are still in pre-rut and going about their daily business, which normally takes place outside legal hunting light. I'd recommend scouting the area as much as possible prior to the season. Look for areas off main roads. Closed roads are even better. Glassing 5 year old reprod/clearcuts or sneaking around in bedding areas might both be productive. They may respond to gentle rattling in early mornings or near last light. In Ryderwood, I've heard them jousting in the evenings near the end of ML season as the season starts to ramp up. You need to spend some time in there and get a feel for what's happening.