Petrology on Lanes Cove

I noticed three vans wizz by the house this afternoon, two from Smith College and one from Amherst College Geology department, filled with what I assumed were college students. I ran across the Smith College website a while ago with pictures from previous field trips. Though I didn't talk to them, I believe the course to taught by Prof. John Brady. Oh, and Petrology? It is the study of rocks.

So the students spent quite a while examining the rocks on the shore just south of the cove. My guess (from the pictures of previous trips), they headed for Woodman's in Essex for dinner before heading home.