Buffalo Ridge is a solid clump of dirt along the 101 near Cave Creek. On one side is a freeway and the other side... a disc golf course. In between, you get a few miles of hiking with good views from the basic dead center of north Phoenix. There do not appear to be any official routes to these ridges, but well worn paths are certainly etched out. Make sure to be respectful of private property and beware the disc golfers below!