Thimlich Ohinga is the largest and best preserved of these massive dry-stone walled enclosures. Criterion (iii): Thimlich Ohinga provides an exceptional testimony to settlement traditions in the Lake Victoria Basin. The massive stone walled enclosures at Thimlich Ohinga mark an important episode in the migration and settlement of the Lake Victoria Basin and sub-Saharan Africa as a whole. Thimlich Ohinga also illustrates an outstanding example of undressed dry-stone construction typology characterized by a three-phase building technology using stones of irregular shapes in two phases joined together by a third middle phase. A new management plan for the property has been adopted in 2017 and guides site management until 2027.