Into a stiff wind and spits of rain we climbed high on a Triassic ridge. Among the gray mudstone was a spill of red ochre. One chunk was handy as a pencil: I tried it on a rock, thinking about how our Paleolithic ancestors used ochre to paint bodies for dance, delight and death.

Afterward I turned the rock over to hide that a human had left a mark in that remote place. The next good rain will wash it away.