About: http://webisa.webdatacommons.org/455187642

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	At the top is a basin, 500' deep, shaped like a horse-shoe, and nearly 3 M.
http://www.w3.org/ns/prov#wasQuotedFrom	archive.org