A cave discovered in 2007, in the Zagros mountain range in Armenia has been determined to contain the oldest known, almost complete, winemaking facility. Scientific examination by UCLA researchers has confirmed the find. The equipment has been dated to about 4100 BC making it over 6000 years old, the equipment included a wine press likely to have been used to ferment grapes, a vat that could hold approximately 50 litres of wine and potsherds with evidence of wine soaking on them. This find is approximately 1000 years older than the nearest comparable discovery. Archaeologists were able to identify a shallow basin made of pressed clay measuring about 1 m x 1 m surrounded by a thick rim as the Wine press in part because handfuls of grape seeds and the remains of pressed grapes surrounded the top of the basin.