now, here's a tip for you: usually when you are near a big roadcut and you see two or three 18 passenger vans with some kind of official crest on the door, it will turn out to be a collegiate geology department field trip.
and what's there not to love about that? so i did what i typically do in this situation, when i can see the group and i'm not in a hurry: i parked my car and marched right over there and started asking what we were looking at. i have never once done this and had the professor or TA or whatever not be happy that a passerby wants to learn about this here roadcut.
and sure, i've read some papers about these rocks, but if you're anything like me when you read geology papers, you end up having to look a lot of stuff up because for some reason geology papers seem to be written for geologists and not your average joes who happen to like rocks.
so it's super educational to be out on this huge rock with a nice young geologist who is trying to explain all this stuff to entry level undergrads.
true story: i pull up and i'm looking at the rocks with these kids and one of them says "are you a geologist?"
"no, just a rock fan."