An aerial shot of the rock formation at Grassy Pond. COURTESY PHOTO

VIDEO: Rock Formation at Grassy Pond Could Be Ancient Gathering Spot for Native American Women

Subscribe to our free, daily publication for all your Westford news.

Have you seen this intriguing interview with resident Cori Ryan about the circular rock formation at Grassy Pond?

The aerial shots by Jamie Boudreau of Airgoz Aerial Photography in Tewksbury make it clear something is going on there.