Lake Nemrut chamois has been extinct. The caldera was registered a natural monument in 2003. The protected area around the crater lake covers . Nemrut Caldera Natural Monument () is protected in the status of a tourist attraction, a protected area of first degree and a wetland. The government of Turkey designated the wetland of the caldera as the 14th Ramsar site of the country on April 17, 2013. It is not permitted to cut reed in the caldera and to fish in the lake, although some livestock grazing takes place around the caldera. A winter sports and ski center was established
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