Both "Rocks in My Head" and Ginny (the geologist) recommended some classic books by John McPhee to help with any of my rock adventures and quest for geological knowledge. I thought you guys should know what other rock hounds say about your kind of road trips:
"Geologists have to stop at every roadcut. It is something we just HAVE to do".
"A roadcut is to a geologist as a stethoscope is to a doctor."
“Almost all our stops are at roadcuts. We go from roadcut to roadcut”.
"Roadcuts are a way of sampling fresh rock. The road builders slice through indiscriminately, and no little rocks, no softer units are allowed to hide."
But since I am not a geologist (yet), I want you know I will be looking at some other things besides roadcuts, even though the rock I may bring you will probably come from some roadcut. :-)