Upton, MA
United States
I volunteered to be in my town historical commission and we worked hard to preserve land that has a stone chamber on it. The stone chamber (man-made cave) turned out to be part of a ceremonial landscape that was determined eligible for the NRHP in 2011 by the tribes: Narragansett, Wampanoag, Mashpee and Wampanoag Aquinnah of Gay Head, and for spiritual and religious significance by the FCC.
Great project to be in.