Mother Shipton's Cave (or "Old Mother Shipton's Cave") is at Knaresborough, North Yorkshire, England, near to the River Nidd. Nearby is a petrifying well[1] which is the oldest entrance charging tourist attraction in England, open since 1630.[2] The water of the well is rich in sulfate and carbonate[1] which is deposited as a ramp and screen below, and in which artifacts are "petrified" (encrusted) as a tourist attraction.[3]