About: http://webisa.webdatacommons.org/69041925

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	Soft, porous, or crystalline rock types such as sandstone or granite offer more friction than very compact or smooth rock like quartzite.
http://www.w3.org/ns/prov#wasQuotedFrom	metoliusclimbing.com