Great article from The Globe and Mail describing the importance of use-and-occupancy maps for tribes and other groups of native peoples. From the article:
Does a place exist if it isnt on a map? In todays complex regulatory and legal world, the simple answer is that if you cant prove its there, then its probably not...
To deal with the burden of proof placed on them by courts and government, native organizations have been mapping the use and occupancy of their lands for about 35 years.