See this for details:
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Forestry land owned by Longview Fiber. Specific Airsoft groups have been given permission to run games here. The playfield area is around 50-60 acres of forest land along with 1 large clearing with a small plywood village that's fun for attack and defend games. There are several paths through the woods for objective-based games. Paintballers use the field as well, but anybody out there needs permission.
Directions:1. Take Highway 30 West from Portland.
2. Continue through Scappoose, turn left at Vernonia Scappoose Highway
3. After 5 miles, make a hairpin right turn onto Cater Road
4. Turn on "Alder Creek Rd" (only one direction to turn)
5. Follow Alder creek past a bunch of houses and a couple sharp turns (DRIVE SLOW)
6. When the Road Forks into a Y, follow the left fork with the sign that says "One lane road ahead"
7. After 1.5 miles or so you'll enter forest again, there's a turn to the right... That's the field. If you take that right, there should be a closed gate at the end of that road. (or by this point you will already see other players and cars)
Field Specific Rules:Smoke/Fire laws are in effect just like any forestry/BLM land. Recreation may be prohibited when there's high fire danger.