Pamirs, while Kashgar is reached via Osh and Gulcha, and then over the passes of Terek-davan, 3,720 m (12,205 ft); (open all the year round), Taldyk, 3,505 m (11,500 ft), Archat, 3,536 m (11,600 ft), and Shart-davan, 4,267 m (14,000 ft). Other passes leading out of the valley are the Jiptyk, 3,798 m (12,460 ft), S. of Kokand; the Isfairam, 3,657 m (12,000 ft), leading to the glen of the Surkhab, and the Kavuk, 3,962 m (13,000 ft), across the Alai Mountains. The Angren-Pap railway line was completed in 2016 (together with the Kamchiq Tunnel), giving the region a direct railroad connection to the rest of Uzbekistan. The Pap-Namangan-Andijon railway line is going to be electrified. Historical demography The information contained in the Encyclopædia Britannica Eleventh Edition (1911) gives the full information from the 1897 census, the only one held in the Russian Empire before 1917, and helps illuminate a situation rendered obscure by the vagaries of Soviet Nationalities policy in the 1920s and 1930s. The population numbered 1,571,243 in 1897, and of that number 707,132 were women and 286,369 were urban. The population was estimated at 1,796,500 in 1906; two-thirds were Sarts and Uzbek. They lived mostly in the valley, while the mountain slopes above it were occupied by Kyrgyz, partly nomadic and pastoral, partly agricultural and settled. The other nations were Kashgarians, Kipchaks, Bukharan Jews and Gypsies. The governing class was primarily Russian, who also constituted much of the merchants and industrial working class. However, another merchant class in West Turkestan were commonly known as the Andijanis, from the town of Andijan in Fergana. The majority of the population were Muslims (1,039,115 in 1897). The divisions revealed by the 1897 census, between a largely Tajik-speaking area around Khuhand, hill-regions populated by Kyrgyz and a settled, population in the main body of the valley, roughly reflect the borders as drawn after 1924. One exception is the town of Osh, which had a majority Uzbek population but ended up in Kyrgyzstan. The one significant element that is missing when looking at modern accounts of the region are the Sarts. This term Sart was abolished by the Soviets as derogatory, but in fact there was a clear distinction between long-settled, Persianised Turkic peoples, speaking a form of Qarluq Turkic that is very close to Uyghur, and those who called themselves Uzbeks, who were a Kipchak tribe speaking a Turkic dialect much