Highways magazine editor Dominic Browne takes a trip hundreds of meters below the ground and millions of years back in time to find a salt seam in Winsford Rock Salt Mine in Cheshire. Run by Compass Minerals, the Winsford Mine is both the largest and oldest working mine in the UK, opening in 1844. It is an incredible operation and vital to the UK's highways sector as a pillar of its winter service industry. This video details the mining process and captures some of the otherworldliness of the place.
Music courtesy of DELOSound.
