Pros:
Sorry, I can't be real kind to Twin Rocks DGC since they are basically telling us disc golfers that we are Not Welcome, Go Away, Stay Out and Take A Hike!
When I called and spoke to the lady in charge about playing, I was told that they were not equipped to handle drop ins and I wouldn't be able to play unless I was staying with a group at their camp.
But when you're dealing with a professional course bagger such as myself, there's always a way. On the pitiful rainy, drizzly day I arrived, no-one was manning their little guardhouse at the front. Rather than check in at the office, I just went ahead and attempted to play their course. There seems to be nine (9) baskets spread out among the camp. There are no signs or visible tee pads so I just played a safari round. I did have the on-line map but it didn't help me much.
Cons:
No signs.
No tee pads.
You're not welcome here.
You're not invited.
Go away!
Other Thoughts:
Yeah, this course probably should be removed from DGCR's registry of courses. Or leave it on there so Oregon can count it as a course even though no-one is allowed to play it. You won't be missing much!