The BCZ Road, which starts from Bingzhongluo Township of Nujiang Lisu Autonomous Prefecture, Yunnan Province, and ends in the Zayul County of Nyingchi Prefecture, Tibet, passing through the Cawarong Township on the way, is considered the "most dangerous road to Tibet".

Full of traffic obstacles including loose gravel, potholes, collapsed segments, landslides, and areas of unstable rock, it is the most primitive but also the fastest road of the Yunnan-Tibet highways.

Construction on the Bingzhongluo- Zayul Highway, known as the BCZ Road, was started in September of 2000 and completed on Oct 1, 2015, with the opening of the Nidadang Bridge. With a total length of 8.7km, the Bingzhongluo- Zayul Highway is the final section of the West Yunnan-Tibet Highway, and is also another important access route between Yunnan Province and Tibet Autonomous Region, after the 214 National Highway.

Before this road, the highways to Tibet including the Sinkiang-Tibet Highway, the Qinghai-Tibet Highway, the south and north Sichuan-Tibet Highways and the Yunnan-Tibet Highway, all had high altitude passes and therefore also a four month period when heavy snow cuts off the mountain roads that connect this region to the rest of the country. The Bingzhongluo- Zayul Highway follows the Nujiang River, heading north to the Cawarong Township, and then merges with the 214 National Highway. Therefore the whole route is at low altitude, without snow blocking any mountain passes. Its annual pass rate can theoretically reach 100 percent, meaning that it's useable all year round.

According to official statistics, it is about 1200km between the Bingzhongluo Township of Yunnan Province and Lhasa, a journey that only takes two days to complete. Along the road, there are numerous natural wonders. It is a true cross-country route and one of the tourism hot spots of China.

The famous "Tiger Mouth" is on the way from Bingzhongluo Township to Cawarong Township, where the distance between two cliffs is less than 100km.The drivers should be very careful here and focus intensely on the road. If two cars meet each other, then one should find a wider place in advance to wait for the other car to pass by. [Photo provided by Xiaoyao Huanglaoxie/tianya.cn]

More than ten kilometers away from the Cawarong Township, there is a place full of cactus with attractive red fruits. [Photo provided by Xiaoyao Huanglaoxie/tianya.cn]

Photo is taken in September of 2003, when the road hadn't yet been completed and local caravans had to walk carefully around the steep cliffs, watching out for potential landslides. Sometimes, people and horses fell victim to landslides, and were pushed by the stones and earth into the river, where they quickly vanished. The situation is much better now after the completion of the road. [Photo provided by Xiaoyao Huanglaoxie/tianya.cn]

The Bingzhongluo Township is covered by morning fog. [Photo provided by Xiaoyao Huanglaoxie/tianya.cn]

The Nujiang River flows peacefully and shines like an emerald. [Photo provided by Xiaoyao Huanglaoxie/tianya.cn]

Villagers walk on the ancient path along the Nujiang River. [Photo provided by Xiaoyao Huanglaoxie/tianya.cn]

Photo shows the Nujiang River and its colorful beach. [Photo provided by Xiaoyao Huanglaoxie/tianya.cn]

The final destination, Zayul County, is situated in Nyingchi Prefecture, Tibet Autonomous Region. [Photo provided by Xiaoyao Huanglaoxie/tianya.cn]