One of my goals is to someday do a photographic series on San Francisco’s sets of public steps.  A hilly city, we are blessed by many of these, climbing past leafy backyards and past gates and walkways that lead to the spacious homes, tiny cottages, and apartments of those who are lucky enough to live along them.  These steps are on the east side of Twin Peaks within an easy walk of my home.  Here I was struck by the contrast between the  shape of the tree and the disciplined line of the manmade fence.