Eos Chaos (Mars)

Greek name of Aurora; albedo feature.

Eos Chaos is a rough, collapsed area in the Coprates quadrangle on Mars at 16.8° south latitude and 46.9° west longitude. (wikipedia entry)

A chaos is a distinctive area of broken or jumbled terrain. On Mars they are named after the nearest named albedo feature on the Schiaparelli or Antoniadi maps.