Plain of Jars third site

The french archaeologist Madeleine Colani speculated that the plains of jars connected a caravan route from northern India, for which there is much evidence.
Colani also found a natural double chimneyed cave at the site of the largest jar field, with evidence of smoke accumulation by the chimneys, similar to a primitive kiln. She believed that it was a crematorium and speculated that the jars were used to deposit cremated human remains. Later excavations have found more human remains and also unburned bones.