Is there exposed bedrock anywhere in Cambridge, MA?

lying Cambridge Argillite. The uppermost Squantum. Member of the Roxbury is a distinctive diamictite, best exposed north of Quincy; its origin has been subject to differing interpretations, most being that the Squan- tum Member is a tillite (Cameron, 1979). It is not everywhere a diamictite, however. read more

But I think you'll have good luck writing to a geologist at one of the local universities. read more

At Bartholomew's Cobble, a picturesque agricultural preserve, it's all about geology. A very long time ago, mega-huge forces flipped over giant rocks when the Taconic and Berkshire Mountains were formed, and those giant rocks became two mega-huge exposed bedrock knolls. read more