We’ve seen how the Indonesian Archipelago has changed over the past 2,000 years here
But how about 21,000 years ago?
This map of Southeast Asia, by atlas-v7x shows how the terrain may have appeared during the Last Glacial Maximum, around 21,000 years ago, when sea levels were approximately 125 meters (410 feet) below present.
According to the artist, “This map does not include any lakes of this time period. The colouring of the map is based on height, and is not meant to represent the climate or vegetation in any way. You can find the elevation key as a separate image here. This map also does not account for any geological or tectonic changes in the landscape since this time period, as the map was made using a modern terrain map with a lowered sea level to simulate an approximate representation of the ice age coastlines.”