You can buy your Annual Northwest Forest Pass from WTA.

Your Northwest Forest Pass is good at all Forest Service day-use fee sites in Washington & Oregon. It's interchangeable between vehicles in the same household.

WTA will mail this pass to you. Please allow 2-3 working days for delivery. 

Good news for WTA Trail Maintenance Volunteers: If you do two days or more of volunteer work on Forest Service trails with WTA, you can turn in your complimentary day passes for an Annual Northwest Forest Pass. Learn how to do this.