Take the trail from Grizzly Flat parking. Go left at the first fork, towards Peters Creek. At the second fork turn right, taking you up the hill, part of the time on an old dirt road. When the trail crosses a private driveway, get on Portola Heights road and follow it (left) for a couple hundred feet. The climbing trail will be on the right with a sign saying it's a climbing area. Follow that to Eagle Peak (left side of ridge).