Now you're talking my neck of the woods!
Go to Naches,Eastern WA before the snow hits! E. of Yakima, WA.
Otherwise plan it next year for summer time. its the best place with everything.
Close to you is Walker Valley South Bellingham, WA. It has some tough trails but not a huge area. 1 day area.
Then you have Reiter Pit which is a place with everything and all trail ratings. 1-2 Day area. You should go with someone that knows the trails to find the tough stuff.
Location: in Gold Bar, WA just off Hwy 2.
Evans Creek in Buckley, WA off hwy 410 has many trails, you have to know where you are going to find the good stuff.
High Rider might be closed still but its always fun. Located in Sultan, WA off hwy. 2.
1day.
Oregon has some fun stuff in the Tillamook forest area. 1-2 Days.
Not sure about Idaho but I bet there is some good rock crawling out there!