About: http://webisa.webdatacommons.org/232629873

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	It contains almost a quarter of a mile of passages and at its deepest point is 150 foot below the surface.
http://www.w3.org/ns/prov#wasQuotedFrom	irishcentral.com