High quality photograph of BNSF Railway GE ES44DC # BNSF 7788 at Front Royal, Virginia, USA.

High quality photograph of SBB RABe 502 # 502 404 at Roche VD, Switzerland.

High quality photograph of Chessie System EMD GP40-2 # B&O 4142 at Youngstown, Ohio, USA.

High quality photograph of BNSF Railway GE ES44C4 # BNSF 6887 at Ash Fork, Arizona, USA.

High quality photograph of BNSF Railway GE ES44C4 # BNSF 6592 at Minot, North Dakota, USA.

High quality photograph of BNSF Railway GE ET44C4 # BNSF 3847 at Silverwood, California, USA.

High quality photograph of Guilford Rail System EMD GP40 # GRS 305 at Hermon, Maine, USA.

High quality photograph of Canadian National Railway EMD SD70M-2 # CN 8874 at St. Lazare, Manitoba, Canada.

CP eastbound potash empties between Lundbreck and Cowley Alta. cross the grasslands at the base of Crowsnest Pass.

High quality photograph of Canadian National Railway EMD SD70M-2 # CN 8000 at Tucson, Arizona, USA.

High quality photograph of Southern Pacific Railroad EMD SD40T-2 # SP 8301 at Warren, California, USA.

High quality photograph of Norfolk & Western GE C30-7 # 8010 at Nolan, West Virginia, USA.

High quality photograph of Union Pacific GE ES44AC # UP 5304 at Moab, Utah, USA.

High quality photograph of BNSF Railway GE ES44C4 # BNSF 6741 at Kingman, Arizona, USA.

BNSF Railway's daily Barstow to Watson freight rolls through Fullerton, California, on June 12th, 2015. The power for this train consists of a quartet of ES44DCs: 7739, 7746, 7743 and 7741.

High quality photograph of Union Pacific EMD SD70ACe-T4 # UP 3071 at Cabazon, California, USA.

High quality photograph of BNSF Railway GE ES44AC # BNSF at Arvada, Colorado, USA.

High quality photograph of Norfolk Southern GE ES44AC # NS 8145 at North East, Pennsylvania, USA.

High quality photograph of Union Pacific GE AC4400CW # UP 5711 at Cajon Pass, California, USA.