乃龙山垭口

380 m at 27.6%

2.1 km at 21.6%

2.2 km at 21.0%

510 m at 19.1%

480 m at 16.0%

500 m at 13.6%

350 m at 12.4%

1.4 km at 12.1%

840 m at 11.8%

4.7 km at 11.6%

600 m at 11.3%

740 m at 11.2%