About: http://webisa.webdatacommons.org/264050485

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	trails across the U.S. from national parks to forest preserves are often kept up by volunteers.
http://www.w3.org/ns/prov#wasQuotedFrom	typepad.com