The silver mining started in the second half of 13th century.
However, it was seven more years before silver mining began again.
Silver mining was carried out on the mountain for many years.
He made a fortune from silver mining, but died in poverty.
Silver mining contributed greatly to the economy of the county from the 1880s to the 1940s.
He tried his hand at silver mining, politics, real estate, without conspicuous success.
In 1859 the Americans knew nothing about silver mining.
True knowledge of the nature of silver mining came fast enough.
In the seventeenth century the region is mainly known for silver mining.
Economic sustainability is often connected to its agricultural success, along with silver mining.