Pendleton Disc Golf Club (external link) and its sponsors created an 18+hole disc golf course at Community Park in SW Pendleton. Signs are up and you can download course maps for the first nine below that show you where tee boxes and greens are located.
The second nine is located on the undeveloped hillside due west of the ballfields. Terrain is rough and watch for snakes.There are also some "alternate" holes within the park boundaries.
Hole #1 begins just off the 44th Street Parking lot (and yes, we know this is the 9th hole sign). You can rent "clubs" at the Parks office, 865 Tutuilla Road, Pendleton.
Downloadable PDFs of disc golf course rules and maps below: