The Han Dynasty brick relief illustrates a salt-mining scene

Southwest China’s Sichuan province has boasted abundant well salt resources for more than 2,000 years. An Eastern Han Dynasty (25-220 CE) brick relief illustrates the salt-mining scene of the time.
The crowded compositions of digging wells, drawing and transporting salt water, boiling salt, and carrying firewood are depicted vividly, reflecting the advanced manufacturing technology of ancient Sichuan.