Because country is so fundamental to Martu identity, mapping of country is a critical element of knowledge preservation.  Waterholes, topographical features, cultural sites, historical events, family connections and language boundaries – the locations of all of these are critical to the maintenance of strong cultural knowledge.  This program combines collation of historical reports, cultural information from Martu, field information from rangers and helicopter mapping.  It extracts significant cultural, social and historical information about precincts and sites, to inform Kalyuku Ninti (return to country) trips and the work of ranger teams on country.