Mighty Machines - Season 01 Episode 02 - At the Quarry

A quarry is a place from which dimension stone, rock, construction aggregate, riprap, sand, gravel, or slate has been excavated from the ground. A quarry is the same thing as an open-pit mine from which minerals are extred. The only trivial difference between the two is that open-pit mines that produce building materials and dimension stone are commonly referred to as quarries.\r
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The word quarry can also include the underground quarrying for stone, such as Bath stone.