Kachūgakure

is a giant living baku bone citadel situated towards the western edges of the Land of Whispering Bone, sitting on the southeastern shore of a lake, embedded inside a giant hill.

History
Kachūgakure was destroyed in the fall of Uzu no Kuni. After years of nomadic roaming across the fire nation, the sohei (warrior monks) and ronin clans migrated to the northern fire country to join the Kyrgyzishi Clan after the The Fourth Shinobi World War. The Kyrgyzishi Clan relocated their clan and allies from the northern provinces of the Fire Country to the lands previously known as the lands of Hot Water and Frost after their people abandoned the territories due to the widespread devastation that ravaged the landscape. Kachūgakure was restored there by the Uzumaki warrior monks and the ronin clans as a sister village to Zuigakure.