ruins of stone wall fortress of kuelap chachapoya culture from the 11th century to the 16th century archeology pre inca

ruins stone wall fortress kuelap chachapoya culture from 11th century 16th archeology pre inca rock garden stonewall tree soil fortification building waterway village geology yard terrain plant grave boulder kuélap cuélap important pre-inca archaeological site located northeastern andes peru province luya was built chachapoyas culture