Before work started, around September 1.
After one week, below, only a couple of stones had been added.
3d week Sept: large limestone slab was carefully placed in position and later raised upright.
It resembles a bird or gryphon.
Vertical Wissahickon slab (brown) was placed in mid-October.
At the beginning of December, soil was added around boulders and, finally, mulch.