Connecticut's importance to the development of industry in the United States can be traced back to its abundant natural resources. Even before the discovery of iron in Pennsylvania, Connecticut was one of the main producers of this strategically critical metal. The Litchfield Hills are dotted with the ghosts of our early iron industry, and the Mining Museum chronicles it's ascendancy. Also here, is one of the most extensive collections of Connecticut minerals on display in the state. Plan to visit this newly enlarged and improved exhibit space.