About: http://webisa.webdatacommons.org/207953792

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	Mud holes, boulders, unbridged streams and other hazards often slowed or temporarily halted travel.
http://www.w3.org/ns/prov#wasQuotedFrom	pbs.org