Humbleton Hill is the site of one of many Iron Age hillforts / settlments that ring the Cheviots and Milfeild Plain in Northumberland. Believed to have been constructed in about 300BC, this hillfort has excellent views in all directions. Although the position is defensive, latest research suggest that some of these structures may have been built not for defensive purposes but to impose on the landscape and to say "look what we can build". The Milfield Plain below is the site of many older settlements and structures such as henges, this coupled with the dozens of rock art sites which ring the milfield plain indicates the area has been important for many thousands of years.
A battle made famous in Shakespeares Henry IV part I between the English and Scots also took place here in 1402.