About: http://webisa.webdatacommons.org/359607942

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	Below is a graph that neatly expresses how large the mined area in the PRB is compared to San Francisco-- and more astoundingly, how large the mines may grow.
http://www.w3.org/ns/prov#wasQuotedFrom	skytruth.org