Spring in the Tehachapis is a beautiful time. The combination of relatively cleaner air, along with the green hills, can make for some interesting images. Add the cover of darkness, a well timed train, and another dimension of the Tehachapi Mountains is revealed. Here's a shot of a southbound BNSF Z-train as it emerges from Tunnel 2 (out of frame bottom left), passes the north switch at Bealville (near the red signal), and continues upgrade until it exits the frame near the X-Over at Bealville (top left of the frame).
Nightfall at Bealville