"Undulation is the soul of the game." - George Thomas
I love to use these kind of effects. In addition to the Rock Creek hole, a couple of our coolest undulating fairways are the 12th at Ballyneal (where you also have to hug the left side) and the 9th at Pacific Dunes (where what you want to do depends on which green is in play).
The one that gave me the toughest time is the 4th at Stone Eagle. It's a diagonal drive over a ravine to a fairway that is sloping SEVERELY right to left and downhill, toward a pond at the bottom of the ravine. The problem is that if players try to bite off too much of the dogleg, they may successfully clear the ravine, but then the ball turbo-boosts down the hill toward the pond ... so they often don't really know if they cleared the ravine or not.
There is PLENTY of room to aim to the right and avoid the situation, but lots of people get sucked in. I've had numerous people tell me that I should have graded the fairway differently somehow, but of course nobody has told me how I could have taken up 40 or 50 feet of elevation change along the edge of a ravine in any reasonable manner.
At the end of the day, I would put this thread right with Archie's earlier thread about luck in golf. There is no such thing as a fairway that UNPREDICTABLY propels the ball offline. It's easy to predict if you are observant ... except on the first play.