January 8, 1836 - More than 50 gold mines now operate in North Carolina, and more are in Mecklenburg than in any other county. Some mines are named for places or their owners: Alexander, McComb, Davidson Hill. Others have more exotic names, like the Queen of Sheba and the King Solomon mines. As the cornerstone is laid today at Charlotte's Mint building on West Trade Street, the Queen City prepares to produce coins for the first time.