I was lucky to get to go down Winsford Salt Mine as part of a visit with work.
Winsford Rock Salt Mine, located west of the River Weaver at Meadowbank, is Britain’s oldest working mine and the last salt mine on the mainland. Even before the Romans arrived, salt had been produced in the area by boiling the water from the natural brine springs.
The solid veins of underground rock salt were discovered here in the 17th century, when prospectors began searching for coal to fuel their saltpans. The salt mined here is now used for gritting and de-icing roads. Some of the space left by salt extraction houses secure storage facilities.