Thanks to my readers for three additions to the gallery of road signs with geological subjects
. This one from Chile may be the most sublime of all, a sign with just the word "geology." You could put such a sign anywhere at all, because everywhere you go there is geology, right? Geologists know that, even though there are many places where only geologists will recognize it. Geologists don't need this sign. At this spot on the other hand, in the Valley of the Moon in the Atacama Desert, nobody needs the sign. If we really need to point out the obvious to the oblivious, then there should be "geology" signs everywhere BUT here.
Photo courtesy Ian Stimpson