About: http://webisa.webdatacommons.org/210126095

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 an average of 12,500 feet above sea level, most of the shapes and patterns are located in areas that have not been conducive for growing crops for the last 10,000 years.
http://www.w3.org/ns/prov#wasQuotedFrom	chinahistoryforum.com