Herb Dengler on a trail at the Phleger Estate in September or October 1993. Herb (5%) Dengler surveyed Toyon Trail (now in the Coal Mine Ridge Nature Preserve of Portola Valley Ranch). Keeping to a grade of 5% or less despite the steep hilly terrain, the hand-built Toyon Trail is a wonderful refuge for hikers, traversing a variety of ecosystems, peacefully. A nice hike on a warm day, too. Photo by Dan Quinn. Slide scanned by Craig Sander.