On Burlington Northern's 50th anniversary, Cascade Green is still running strong in rural Nebraska. Here, BN 3020 tugs the Beatrice Local to the Koch fertilizer plant at Hoag.

BNSF 3020 (GP40M) is one of the many former BN units that can be found working the Denver Yard.

I wonder how long until the BNSF paints some Tier 4 engines in the heritage colors of BN Cascade Green and an ATSF Warbonnet.

On the Brush Sub, BNSF GP40-M No. 3020 and Santa Fe B40-8W switch empty tanks at Suncor Energy.

BNSF 3020 (GP40M) makes the run through Longmont, Colorado with a small freight.

BNSF 3020 (GP40M) leads a load of lumber through Louisville, Colorado.

BNSF 3020 (GP40M) heads uphill to Utah Junction where it will wait for a southbound train to clear before heading to Broomfield, Colorado.

BNSF 3020 (GP40M) rounds the corner and heads towards Broomfield, Colorado.

BNSF 3020 (GP40M) leads a former Norfolk Southern painted unit and a freight past the Valmont Power Plant in Boulder, Colorado.

BNSF 3020 (GP40M) crosses a bridge and will soon leave Boulder on the way to Louisville, Colorado

BNSF GP40M No. 3020 and BNSF B40-8W no. 521 still wearing a Warbonnet, cross 60th street and Sand Creek with a cut of tanks for Suncor Energy.

BNSF GP40M No.3020 stops on the Brush Sub Main to get ready to pull a set of cans from Suncor Energy.

After setting out some tank cars at Suncor Energy, BNSF 3020 waits for the switch to be thrown to enter the Brush Sub Main.

Local power at Aurora, GP40M #3020 & GP39E #2751.

BNSF 3020, 1732, 2745, 5665, & 6425. The crew is on board and will be building an eastbound in the small yard in Aurora.