Swansea Vale Railway nineteenth century, when land transport was limited to what pack animals could carry on their backs. At that time the extraction of copper in Cornwall became an important industry, and as a great deal of coal is required to smelt copper, it became the practice to bring the copper to Swansea by ship and smelt it there. This specific sector of the metal industry became so dominant that Swansea was given the nickname "Copperopolis". The works engaged in this industry were located on the banks of the River Tawe at first, but the construction of the Swansea Canal, opened in
Swansea Swansea Swansea (; ), is a coastal city and county, officially known as the City and County of Swansea () in Wales. Swansea lies within the historic county boundaries of Glamorgan and the ancient Welsh commote of Gŵyr on the southwest coast. The county area includes Swansea Bay () and the Gower Peninsula. Swansea is the second largest city in Wales and the twenty-fifth largest city in the United Kingdom. According to its local council, the City and County of Swansea had a population of 241,300 in 2014. The last official census stated that the city, metropolitan and urban areas