China has completed building a highway including a 2km mountain tunnel in a remote part of southeastern Tibet Autonomous Region (TAR), which ends near the border with Arunachal Pradesh, posing a security challenge to India.
The highway cuts through the world’s deepest canyon, the Yarlung Zangbo Grand Canyon, and its likely terminus is Baibung county (known as Drepung in Tibetan), close to the Indian border village of Bishing in the Upper Siang district of Arunachal Pradesh.
The village of Bishing is located in Arunachal’s Gelling circle, which touches the McMahon Line, the de-facto Sino-India border in the region.
