Wikipedia
Mastichochoria (Μαστιχοχώρια "the mastic villages" in Greek) is a former municipality on the island of Chios, North Aegean, Greece. Since the 2011 local government reform it is part of the municipality Chios, of which it is a municipal unit. It is located in the southwestern and extreme southern part of the island. It is the largest municipal unit in land area on Chios at 211.687 km². Its population was 4,744 at the 2001 census. The seat of the municipality was Pyrgi (pop. 1,044). The next largest villages are Kalamotí (718), Armólia (611), Mestá (501), and Lithío (455). The small coastal village of Emporio (47) boasts an archaeological site.
This area is well known for the production of mastic, from which it derives its name. Mastic is the hardened resin of the mastic tree and is only harvested on Chios, being a major part of the local economy. In the village of Pyrgi, there is even a small Museum of Mastic.
Within the European Union, Chios mastika, a mastic-flavoured liqueur has a protected designation of origin. The island's mastic production is controlled by a co-operative of medieval villages. The local producers are united under the Chios Gum Mastic Growers Association.