text: Maybe incorrectly located GPS app position snapped to nearest road?
  I noticed maybe 300m sw of this marker a traced footpath/sidewalk in turning-circle shape but the OSM road, Cottage Court, continuing on.  ESRI Clarity show it well, Bing z20 even better as if there's a fence or something casting a short shadow.
  Newer imageries are unclear, if the escape from the turning circle is reasonable.
  Just my guess, now my attention has been re-drawn to it.