Old New-Gate Prison & Copper Mine is nationally recognized as the first chartered copper mine (1707)and the first state prison (1773) in early America. After colonial mining ceased in the mid-1700s the site was purchased by the government of Connecticut and used to inhumanely imprison people in the abandoned copper mine.

Today, Old New-Gate operates as a history museum in East Granby, Connecticut. Comprised of a visitor center, outdoor prison yard, historic ruins/structures, and copper mine. Visitors are encouraged to self-guide through the grounds/exhibits and take a public tour of the abandoned mine. Additionally, the museum houses The Old New-Gate Museum of Art - a rotating exhibit of artwork from the Community Partners in Action's Prison Arts Program, as well as the first-ever Connecticut Hall of Change- honoring formerly incarcerated individuals for their contributions to their community.

Through a lens of multiple perspectives, visitors to Old New-Gate Prison & Copper Mine are encouraged to shine a light on issues of historic preservation, justice, and environmental conservation, promoting critical thought, civic engagement, and empathy for all people.