JS 8225 rounded the curve at Dongkengkou with the first loaded train of the day on 5 December 2019.
This was one of the last places in the pit to get the morning sun and was usually in partial shadow when the day's first train ran. Even in the dry desert conditions there was enough moisture in the air to make the rails slippery in such places and we saw several trains lose adhesion at this spot.
JS 8225 was going well and made it to the top without incident on this occasion.