Legend has it that just before the Revolutionary War, David Tallman made his fortune from the rich copper ore blasted from underground tunnels, called the Tallman Mine, located north of  Hamden, Connecticut, close to Sleeping Giant State Park.

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The mine was located only 10 miles north of the New Haven mint, built in 1785, and said to have supplied copper for America's first circulating coin, the Fugio Penny. So please, put on your hard hat as we venture below ground into the historic Tallman Copper Mine.

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