There are a few guys on Marlin that live up there, but not alot.
You honestly will have better luck hooking up with these guys! They are always hitting up Reiter, which is close to you. They are all about keeping the local NW trails open too. Good bunch of people! They are really tight group of friends. Especially if you can get in on KARLVP's adventures. They are quite funny. Ask him about the kitty litter incident!
I'm not saying that they are better than MARLIN's forum, but for your local wheeling, these are the guys to hit up.
Another thing, I just saw your pic of your truck, make sure you got some serious anti theft devices in and on it. Your area is a hot bed of stolen toys! They have been known to steal right out of locked parking garages, that have security. So, get some things setup to help stop the thieves! There is alot of good ideas on this forum about what you can do to help prevent theft of your rig.