The Road That Changed Everyday Distance in the Dulong Valley

Dulongjiang lies west of Gongshan County, beyond the high ridge of the Gaoligong Mountains. A 2026 report by the National Ethnic Affairs Commission retraces a journey that once followed narrow tracks through forest and over snow-covered passes: a round trip to the county seat could take three or four days. In 1964, a route for people and pack animals crossed the mountain, but the cliffs and steep gradients still made travel a multi-day undertaking. A simple road opened in 1999, yet winter and spring snow could close the mountain for roughly half the year.

The change came through the Gaoligongshan Dulongjiang highway tunnel. The tunnel, 6.68 kilometres long, was opened through on 10 April 2014. The Ministry of Culture and Tourism’s 2019 account says it ended the recurring half-year history of snow closure and road isolation. The date matters because it marks more than a construction milestone: a route that depended on the season became a connection people could plan around across the year.

The day the tunnel was broken through also revealed why access mattered. The NEAC report recounts that a five-year-old girl in Dulongjiang suffered severe burns that afternoon. The tunnel was not yet formally open, but construction workers cleared a temporary route through the works and sent a vehicle carrying her out for medical treatment. This is one documented emergency, not a claim that every later journey became easy. It makes visible what the road changed: urgent care no longer had to wait for a mountain crossing on foot.

The same report is careful about the road’s present risks. Nearly 80 kilometres of narrow mountain road wind toward Dulongjiang, with hundreds of bends and steep slopes. Heavy rain can trigger landslides and debris flows; snow season requires ongoing maintenance and rescue work. In 2025, floods damaged several road sections and temporarily interrupted transport, power and communications before crews restored the route. Access therefore has two histories at once: a tunnel that ended regular seasonal isolation, and a mountain road that still requires constant attention from the people who maintain it.