Old New-Gate Prison & Copper Mine
Former prison East Granby, CT
Chartered as a copper mine in 1707, the site became Connecticut's first state prison in 1773, holding inmates in the dark mine tunnels until 1827. Visitors describe chills and an oppressive feeling deep underground, and the state museum hosts seasonal evening events in the mine.
Visiting: State history museum with mine tours during its open season; check the official site for hours.Official site →