5273, 5088 and 4120 wind a southbound manifest through Tunnel 10 at Walong as they ascend Tehachapi Pass. Cut in half way back along the train are mid-train helpers 9649, 8319 and 5395.
I recently learned that this section was double-tracked during 2015/16 and as a result of this engineering works, there is now a large cutting to the right of Tunnel 10 and a second mainline on the inside of this s-curve, changing this view forever.
