Barberton Makhonjwa Mountains 

These mountains, located in north-eastern South Africa, make up 40% of the Barberton Greenstone Belt, one of the world's oldest geological features.

The property is a diversified reservoir of information on surface conditions, meteorite impacts, volcanism, continent-building processes, and the early life environment since it represents the best-preserved succession of volcanic and sedimentary rock dating back 3.6 to 3.25 billion years.

The Barberton Makhonjwa Mountains were named a UNESCO World Heritage Site in 2018.

(Source UNESCO)