About: http://webisa.webdatacommons.org/109500912

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	In fact, the Columbia River is the most hydroelectrically developed river system in the world with over 400 dams along its length and among its tributaries (Center for Columbia River History, 2005).
http://www.w3.org/ns/prov#wasQuotedFrom	nowater-nolife.org