About
Huanglong Extreme Endurance Race - 77K is a 77.8 km ultra race with 4,374m elevation gain in China. Terrain: alpine, mountain. Rated very hard difficulty. Located near Songpan, Sichuan.
Organized byOutopia
Difficulty
|100
Very Hard122 KE
KM-Effort = distance (km) +elevation gain (m)100
Based on the ITRA standard.
Elevation Density56 m/km · Hard
Elevation Density =elevation gain (m)distance (km)