Northwich was the most northern of the -wich towns in Cheshire. The existence of Northwich in the early medieval period is shown by its record in the Domesday Book: The manor of Northwich belonged to the Earls of Chester until 1237 when the family line died out. Subsequently, Northwich became a royal manor and was given to a noble family to collect tolls in exchange for a set rent. That salt production continued throughout the centuries and can be seen through John Leland's description of the town in 1540: Between 1642 and 1643, during the English Civil War, Northwich was fortified
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