Whatsit called... Erosion

I learned about soil erosion, but watching it in fast forward is another thing. The ground is so sandy here that a hard rain will get this result. There was hardly any sand on the road yesterday, but today it's covered.
The picture gives a good indication of one of the benefits to plant roots, they keep the top soil in place even when it's less than ideal dirt. Any patch along the route we walked today that had less than full plant cover looked exactly like this - wet sand all over the road.

What I learned: Don't wear sandals after a rain unless sand in the sandals is okay.