Salem Limestone - Quarrying (DS-05)
Unwanted surface material - soil and rock - must first be removed from the stone that is to be quarried. Next, channeling machines, wire saws, or chain saws, are used to make vertical separations that free a huge "cut", about 4 feet by 10 feet by 40 feet or more, and weighing more than 100 tons, from the working ledge. The cut is then split loose at the base by wedges driven into shallow horizontal drill holes, turned down on its side, and separated, again by wedges, into mill blocks of about 10 tons.
Our Hoosier State Beneath Us: Dimension Stone