I did another stairwalk, this time above Glen Park & Glen Canyon, around Diamond Heights.
That's Bernal Hill on the right.
This is the Harry St. staircase, both from above & below.
Interesting architecture...
A mouse, which might hae been a burrowing creature, lost on a stair. It couldn't find its way out. It kept falling down the stairs. Don caught the creature in the stairwalk book & put it in some grass, away from the concrete stairs.
First picture is the stairs where the 'mouse' was lost.