About: http://webisa.webdatacommons.org/444656641

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	Hoover Dam is a concrete arch-gravity dam in the Black Canyon of the Colorado River.
http://www.w3.org/ns/prov#wasQuotedFrom	360cities.net