About: http://webisa.webdatacommons.org/137212882

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	1941 numbers as reflected on this 1952 map, for example throughout this website; currently USACE uses a modification
http://www.w3.org/ns/prov#wasQuotedFrom	earthlink.net