Interior of Marston Salt Mine, Northwich, Cheshire, England, showing how pillars of rock have been left to support the roof. At this date ()), the mine had been excavated to a height of 16 ft over approximately 40 acres. Engraving

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Interior of Marston Salt Mine, Northwich, Cheshire, England, showing how pillars of rock have been left to support the roof. At this date ()), the mine had been excavated to a height of 16 ft over approximately 40 acres. Engraving

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Size: 4500px × 3240px
Location:
Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

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