America’s first copper mine—and the dungeon that followed
Old New-Gate: colonial copper mine turned state prison—open seasonally for public tours, with persistent tunnel haunt lore.
As with other Ghosthound field notes, this article separates documented history from folklore and investigator reports. The haunt stories are included because they circulate — not because they have been proven.
Plan your visit
Address: 115 Newgate Road, East Granby, CT 06026
Access: State historic site; open seasonally (typically late spring–fall). Guided mine access included with admission when open. Sturdy closed-toe shoes required.
Hours: Seasonal; hours change yearly—always verify before travel.
Cost: Admission charged; confirm current rates and hours on the state historic-site page before you go.
Region: New England — East Granby, CT
History
Copper mining began here in 1707—the first chartered copper mine in the American colonies. After mining faltered, Connecticut repurposed the shafts in 1773 as the colonies’ first state prison. Conditions underground were infamous; inmates called it Hell. New-Gate closed as a prison in 1827. It is now a National Historic Landmark and archaeological preserve.
Ghost stories and paranormal claims
Labeled lore. Treat the following as longstanding reports and tour-script stories unless a primary source is cited.
Visitors and guides report voices in the tunnels, shadow figures, and a heavy atmosphere underground. Lore is less about one named ghost than residual weight of forced labor, disease, and failed escapes across centuries of mining and imprisonment.
Field notes
Hours, fees, and access rules change — always double-check the official site or managing agency before you travel. Be a good guest: no trespass, no damage, no removal of objects, and no after-hours entry where barred. Daylight visits are the responsible baseline; paid evening programs only when the operator offers them.
Related reading
Tags: Connecticut, East Granby, Prison, Mine, State Historic Site, Haunted Places, History
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