Hi Ho. Hi Ho. It's off to work we go . . .
Geologists always walk around looking at the ground because that's where the rocks are. Especially in a creek bed in the middle of a gorge in the Flinders Ranges. Occasionally you see something else of interest.
This group boldly heading out along the floor of the gorge took me by surprise because, although there are several species of butterflies and moths native to the Flinders, I'd never seen caterpillars there before (click on the image to enlarge). The ripples in the creek bed can clearly be seen, and the trail of caterpillars almost mimics the rise and fall of the ripples. The lens cap is 52mm in diameter