Ibn Sina Peak, formerly Lenin Peak (Пик Ленина, Qullai Lenin; renamed Ibn Sina Peak in July 2006), rises to 7,134 m in Gorno-Badakhshan (GBAO) on the border of Tajikistan and Kyrgyzstan, and is the second-highest point of both countries. Ibn Sina is the highest mountain in the Trans-Alay Range of Central Asia, and in the Pamir Mountains it is exceeded only by Ismail Samani Peak (7,495 m). It was thought to be the highest point in the Pamirs until 1933, when Ismail Samani Peak (known as Stalin Peak at the time) was climbed and found to be more than 300 metres higher (7,495 m).
Some sources give Achiktash as the Kyrgyz name for this 7,134 m mountain on the border with Tajikistan, but it seems that Achiktash, or more properly Achik-Tash, is the name of a plateau and a base camp at an altitude of 3,600 m on a popular northern climbing route to Lenin Peak, which starts in the southern Kyrgyz city of Osh, a day's drive north of the border.
There are 16 established routes, nine on the southern side and seven on the northern slopes. The peak is quite popular with climbers due to its easy access and some uncomplicated routes. However, the peak is not without its share of disasters. In 1974, an entire team of eight climbers died high on the mountain in a storm. An avalanche triggered by an earthquake killed 43 climbers in 1990.