Sünt-Hasardag Nature Reserve is a nature reserve in the Balkan province of Turkmenistan. It was established in 1977 to protect indigenous flora and fauna.
The highest point of the Koytendag mountain range, one of the spurs of the Gissar Range bordering the southeastern border of Turkmenistan, is Mount Airybaba. It is not only the highest point of this mountain range, but also of all the mountain systems of Turkmenistan. Its height is 3139 meters above sea level.