China National Highway 109
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China National Highway 109 connects Beijing with Lhasa. It runs westwards from Beijing via Datong, Yinchuan and Xining to Golmud before turning southwest to Lhasa. The portion of the highway from Xini
The Dongfanghong Tunnel in Mentougou District, Beijing
G109 in Qinghai
G109 to the north of Lhasa.
Tanggula Pass
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The Tanggu La, Tangla Pass, or Tanggu Pass is a wide mountain pass in Southwest China over 5,000 meters in elevation, used by both the Qinghai–Tibet Highway and Qinghai–Tibet Railway to cross the Tang
China National Highway 109
…and Tibet, from Golmud to Lhasa, is paralleled by the Qinghai-Tibet Railway. The highway reaches its highest elevation of 5,231 meters (17,162 ft) at Tanggula Pass. Construction of this section started on 11 May 1954. "Tasked with carrying upwards of 85 per cent of goods in and out of Tibet, the Qinghai-Tibet…
Tanggu La marker on Qinghai–Tibet Highway
Pingo in Tibet near Tanggula pass