Terelj is a unique rocky mountain formation, near the Ulaanbaatar city. The highest point is 2664 meters above sea level, and it is southeast end of Siberia. An intercepted steep slope of mountains in rock mountain valley has a unique setting. For example, there are many legends and historic rock cave such as Camel Rock, friend’s rock, monk’s rock, lion rock and a turtle rock. Water and smoke amethyst was found in Terelj and was mined until 1960. Because of the water encroachment depth in the area, it stopped producing.

One of the famous places in Terelj is a turtle shaped 23m tall rock. According to a legend, Galdan king of the Oird Mongolian dynasty had an imbalanced battle and had significant losses and stopped at the Turtle rock to gather remaining forces. He was preparing to escape to the west and his gold and silver were on the gorge of the turtle rock. But one of his Manchu queens would not go to be with the wealth and jewelry. The king killed his queen. Killed queen's spirit left in the turtle rock. People wanted to get the hidden gold and silver, so they used to hang cow’s wet meat. Although the coins adhesive back in the meat, it fell into rock bottom, making laugh of the queen’s spirit.

A large number of locals and foreign tourists like to visit in this sight. Every mountain in the valley has tourist camps to rest. In the weekends people like to come for riding a horse and camel, trekking, hiking, swimming and golfing. In winter time, you can go for a dog sledding and horse drawn sleigh. The Terelj national park is one of the tourist attracted areas.