Thimlich Ohinga

Thimlich Ohinga is a dry-stone walled settlement north-west of the town of Migori in the Lake Victoria region of western Kenya. Its walls are built of undressed stones fitted together without mortar. It is the largest and best preserved of 138 similar sites near Lake Victoria, which together hold 521 stone structures.

UNESCO considers it probably built in the 16th century, and the tradition of such stone enclosures lasted until the mid-20th century. Luo oral tradition says the enclosures protected people and livestock from wild animals and cattle raiders, and they also marked groups bound by lineage. Inside are a watchtower by the entrance, house pits, livestock pens and an ajua game board cut into the rock, while iron-working debris and imported glass beads point to long-distance trade.

The last families left the enclosures in the first half of the 20th century. The site was documented in the 1960s, the National Museums of Kenya began work there in 1980, and in 1981 it was gazetted as a national monument under its present name, replacing 'Liare Valley'. In Dholuo, Thimlich means 'frightening dense forest' and Ohinga 'a large fortress'; it was inscribed as a World Heritage site in 2018.