About: http://webisa.webdatacommons.org/426458982

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	Through the sedimentation of calcium carbonate and the work of special kinds of algae and moss, tufa or travertine has been deposited to form the natural dams that separate the lakes.
http://www.w3.org/ns/prov#wasQuotedFrom	explore.co.uk