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WHAT IS SUBTROPOLIS?

SubTropolis was created through the mining of a 270-million-year-old limestone deposit. In the mining process, limestone is removed by the room and pillar method, leaving 25-foot square pillars that are on 65-foot centers and 40 feet apart.

SUBTROPOLIS FACTS:

  • over 10,000 stone pillars
  • strength of limestone is 10,000 to 12,000 pounds per square inch, which is 3x stronger than concrete
  • 1.5 million tons of rock are mined every year (35 acres per year)
  • nearly 45 million square feet (over 1,000 acres) have been mined out since mining began in 1945

Want more info? Check out the SubTropolis Storage flyer.

SUBTROPOLIS STORAGE NOW TAKING WINTER 2010 RESERVATIONS!

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