Karaca (Northern Kurdish: Qerejdax) is a shield volcano located in eastern Turkey.
It was also known as 'Mount Masia'. Which in turn was used to give the title of an Iris found on the mountain, as Iris masia.
On 6 March 2006 Der Spiegel reported that the Max Planck Institute for Plant Breeding Research in Cologne had discovered that the genetically common ancestor of 68 contemporary types of cereal still grows as a wild plant on the slopes of Mount Karaca (Karacadag). The results strongly suggest that slopes of Karaca Dağ provided the site for the first domestication of einkorn wheat approximately 9,000 years ago.