A hot BNSF Z train begins to head down grade into the little town of Flagstaff, AZ

A westbound stack train with a cut of autoracks is just about at the top of the grade in Flagstaff in the last remaining light of the day.

As storm clouds build in the backround a BNSF Z train heads downgrade towards downtown Flagstaff just to the west of this location.

A westbound BNSF stack train rolls through Flagstaff, Arizona on BNSF's Seligman Sub with a newly painted NS horsehead unit trailing.

Southwest Forest Industries No. 12

A rare pure Santa Fe GP60M #120.

A Phoenix bound Z Train overtakes an underpowered stack train east of Flagstaff.

8024 West roars upgrade toward Flagstaff just as the sun falls behind some of the many ponderosa pines in the area.

With the San Francisco Peaks looming in the distance, 4942 East races downhill just east of Flagstaff.

Just as the sun is setting behind the forest of huge Ponderosa pines, BNSF 761 West roars upgrade approaching Flagstaff.

BNSF Westbound Steel Coil Train at Flagstaff, Az. on BNSF'S Seligman Sub