Northern Molar Hills
The area where your tribe still remanis is the Northern Molar Hills, though most people just call it "The Hills". It is an area about 100 miles in diameter and populated by perhaps 10 000 individuals in all. About half of these are not tribesmen, per se, but steadfast Freemen who have escaped the grasps of gentry only to having to live life outside the edge of civilization. Instead they pay tribute in produce to a local tribe for protection and trade with both the tribes as well as civilization.
It is a dangerous choice where you need wits, endurance and charm as well as a strong hand in order to survive. If a competing tribe gets angry they may take it out on the Freemen, so many of them choose to join up in minor, but well fortified, villages so they can withstand a raid until their tributed tribesmen chase off the invadors - or are defeated and the tribite change hands.