Boulder Quarry



Boulder Quarry was, probably, the most short-lived industry on the Island of Sodor, which only appeared in Season 5.

Built up in the mountains, the Quarry was operated by the narrow-gauge engines, who transported the mountain rock to Thomas and Percy at the Exchange Sidings. However, the machinery were digging into the mountain with a Boulder on it; and once, Boulder came down the mountain, causing chaos and runaways, the Fat Controller decided to close down Boulder Quarry.