On April 10 this year,a final explosion heralded the completion of a truly challenging construction project.It took three years’work to fi nish the 6680-meter tunnel that brings Dulongjiang Highway through Gaoligong Mountain.On that same April 10 also in Nujiang Prefecture,Pu Yanfang,a 5-year-old Drung girl from Dulongjiang Town,was severely burned while warming herself at home.