free mine

free mine

In naval mine warfare, a moored mine whose mooring has parted or been cut.
Dictionary of Military and Associated Terms. US Department of Defense 2005.
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This dedication, Ms Lahri said, continued to earn Lucara Diamond the desirable tag of 'An incident free mine', making it the safest in the world.
As well as the usual free mine tours and machines trail, during the February half term they will be offering additional attractions from arts and crafts to tile smashing.