This is the second part of a column from the Vermont Granite Museum on flat surfacing granite. The most important surfacing machine breakthrough came in the early 1890s with the introduction of a ...

330 million years ago: Barre granite was formed. Late 1700s/early 1800s: Stone masons (often part-time farmers) split granite boulders into foundation stones, steps, sills, lentils, hearthstones and ...