BNSF 1656 (SD40-2) runs light after dropping off a cut of oil cans at the terminal in Hudson, Colorado.

BNSF 1656 (SD40-2) has just dropped off a cut of oil cans in the yard at the Hudson Terminal and now heads back to the main line.

A former Burlington Northern SD40-2 works the yard in Hudson, Colorado as a coal train runs past on the Brush Sub.

If you are a fan of the Burlington Northern SD40-2 you can find them working the yard in downtown Denver, Colorado.

BNSF 1656 (SD40-2) sorts a cut of cars back into the yard in downtown Denver, Colorado.

BNSF 1656 (SD40-2) waits at the BNSF engine servicing facility as a Ferromex unit gets a fresh supply of sand and fuel at the island.

BNSF 1656 (SD40-2) survives in its Burlington Northern Cascade Green paint as it waits for servicing at the BNSF engine facility in Denver, Colorado.

You can still find original Cascade Green Burlington Nothern units at the Denver yard in downtown Denver, Colorado. Here BNSF 1656 (SD40-2) waits for servicing at the engine facility near Denver'... (more)

Its' Throwback Thursday at the BNSF engine servicing facility as 1656 (SD40-2) waits for service or assignment.

It's always a good day when you can catch a Cascade Green Burlington Northern unit leading a freight. Here BNSF 1656 (SD40-2) leads a short oil can train towards Denver through Commerce City.

BNSF 1656 (ex-Burlington Northern SD40-2) runs through Commerce City, Colorado with a light load of oil cans.

BNSF 1656 (SD40-2) leads a freight into Golden, Colorado.

BNSF 1656 (SD40-2) leads a freight into the BNSF yard in Golden, Colorado.

A veteran Burlington Northern SD40-2 BNSF 1656 takes a freight into the small BNSF yard next to the Coors Brewing facility in Golden, Colorado.

This 43 year old veteran still wears its Burlington Northern Cascade Green paint after all these years.