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Off a parking garage in Saint Louis, MO
(lemmy.gregw.us)
Desire paths Desire paths can be paths created as a consequence of erosion caused by human or animal foot-fall or traffic. The paths usually represent the shortest or most easily navigated routes between origins and destinations. https://en.wikipedia.org/wiki/Desire_path
That's grass.
There's some grass, but it looks to be mostly dirt.
It is dried/dead grass, which is yellowish. That is just what grass mostly looks like in winter.