Nemrut (volcano) the region. The collision of these plates began in the Middle Eocene and closed the stretch of water, which in the Mesozoic formed the Tethys Ocean. Nemrut, along with three other extinct volcanoes of eastern Turkey: Ararat, Tendürek and Süphan, is located in the area of a complex fault, which runs along the boundary of the Arabian and Eurasian plates in the territory of the Armenian Highland. It is the westernmost of these volcanoes, the only one that remains active, and generally the only volcano in Anatolia, which erupted in the historical period. Nemrut is located 10 km north of
Theydon Mount derives from the hill which it is located. Theydon Mount has been called "Theydon Paulyn", "Theydon Lessington", and "Theydon Briwes" in the past. The names from the former lords of the manor. The name Thoydon Mount has also been used. Theydon Bois, Garnon and Mount were recorded in the Domesday Book as "Taindena"/"Teidana". Hill Hall is a Grade I Listed country house. It was built in 1557-8 for Sir Thomas Smith. Theydon Mount has a church called St Michael which was completed in 1614 by Sir William Smith and is Grade I Listed. The original church was St Michael and