Sort of like this picture. Note the up high storage places. Time frame: 900 - 1200 AD. They don't why it was abandoned. Drought? Attack? Tree ring analysis showed a 30 year drought around 1200
Sort of like this picture. Note the up high storage places. Time frame: 900 - 1200 AD. They don't why it was abandoned. Drought? Attack? Tree ring analysis showed a 30 year drought around 1200