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The Cleveland Mine is a salt mine owned by Cargill Deicing Technology in Cleveland, Ohio.

It is one of the largest salt mines in the world.

Cleveland Mine is one of two salt mines in the Cleveland area, the other being the Morton Salt mine east of Cleveland.

It is one of three mines in the United States owned by Cargill.

There are about 100 workers in the mine. They are members of the union Teamsters Local 436.

Description
According to company managers, the location in an urban area (downtown Cleveland) is unusual for a salt mine.

Reserves are expected to last for 100 years.

Equipment is transported down the mine in pieces and, once assembled, remains underground forever. Maintenance is also performed underground.

The mine uses the room and pillar system

There are a hundreds of rooms in the mine, and each room has a height of about 15 ft and an area of about 45 ft2.

The temperature inside the mine remains around 70 F year-round.

History
The mine was acquired by Cargill in 1997

In 2013, the mine shut down indefinitely due to safety concerns. Local geologists predicted that the closure would not be permanent.

Below-ground miners were given paid leave.

Ten days later, the mine resumed operations.