About: http://webisa.webdatacommons.org/136034271

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	Research on Hard Rock Mining in Arid Southwest Alluvial Basins Hard rock mining for copper, gold, silver, and other minerals has been an important part of the economy of the southwestern United States for more than a century.
http://www.w3.org/ns/prov#wasQuotedFrom	savethesantacruzaquifer.info