The Alay Valley (Kyrgyz: Алай өрөөнү) is a broad, dry valley running east–west across most of southern Osh Province, Kyrgyzstan. It spreads over a length of 174 km east–west. The valley extends in north–south direction with varying width of 27 km in the west, 40 km - in the central part, and 3–7 km - in the east. The altitude of the valley ranges from 2,440 m near Karamyk to 3536 m at Toomurun Pass with an average altitude of about 3000 m. The area of the valley is 8400 km2. The north side is the Alay Mountains which slope down to the Ferghana Valley. The south side is the Trans-Alay Range along the Tajikistan border, with Lenin Peak, (7134 m). The western 40 km or so is more hills than valley. On the east there is the low Tongmurun pass and then more valley leading to the Irkestam border