There are at least 50 groups that still don't have regular contact with the outsides and keep away from them. The Brazilian government policy towards these groups is to leave them alone, as they wish. Not very much is known about these groups as they keep going deeper and deeper into the forest as the outsiders get closer to where they live. To stop the constant migration of tribes it has been suggested that an Indigenous Protected Area be setup so they can stop running away into the most remote places of the forest.