History of Northwich was the Stanley's, later Earls of Derby and stayed in the family’s hands until the late 18th century. That salt production continued throughout the centuries can be seen through John Leland's description of the town in 1540: Although Leland described Northwich as a market town, there is no surviving charter for a market or fair. A market still exists today. Between 1642 and 1643, during the English Civil War, Northwich was fortified and garrisoned by Sir William Bereton for the Parliamentarians. The salt beds beneath Northwich were re-discovered in the 1670s by employees of the local Smith-Barry family. The Smith-Barrys
Mining engineering and management, or as an equipment and mineral salesperson. In addition to engineering and operations, the <nowiki>mining engineer</nowiki> may work as an environmental, health and safety manager or design engineer. The act of mining required different methods of extraction depending on the mineralogy, geology, and location of the resources. Characteristics such as mineral hardness, the mineral stratification, and access to that mineral will determine the method of extraction. Generally, mining is either done from the surface or underground. Mining can also occur with both surface and underground operations taking place on the same reserve. Mining activity varies as to what