BNSF 2854 (former AT&SF GP39-2) sits in the yard of the engine servicing facility in Denver, Colorado.

It's 'Old School Day' at the engine servicing facility in Denver, Colorado as a AT&SF Bluebonnet and a Burlington Northern Cascade Green motor join the other motors.

BNSF 2854 (former AT&SF Bluebonnet GP39-2) works the BNSF Denver Yard shuffling cars into the ladders.

Having been built in February of 1975 for the Atchison Topeka and Santa Fe Railroad, it's amazing that after 50 years it still wears the Bluebonnet paint scheme.

Former Santa Fe Bluebonnet #2854 (GP39-2) leads a freight over the South Platte River in Denver, Colorado.

BNSF 2854, a former AT&SF GP39-2 still in its Bluebonnet paint, works the yard in downtown Denver, Colorado.

BNSF Geeps are at the ready as the California Zephyr passes through the yard in Denver, Colorado.

BNSF Bluebonnet 2854 (GP39-2) waits with another Geep near the Longmont Depot for orders to take the Buck Local to Broomfield, Colorado.

Light snow is falling as BNSF 2854 (GP39-2) crosses the road in a pull me / push you configuration with a motor on the other end of the short train.

BNSF 2854 (GP39-2) runs past the cactus and the cooling ponds at the Valmont Power Plant in Golden, Colorado.

BNSF 2854 (GP39-2) crests Burke's Hill as it leaves Boulder, Colorado and runs towards Broomfield.

From the 1970's to the late 1990's the AT&SF adopted a new paint scheme for freight diesels known as the Bluebonnet or Yellowbonnet scheme, which placed more yellow on the locomotives. The purpos... (more)

BNSF 2854 (GP39-2) runs light on the Longmont Siding and will take the spur that runs to Lafeyette, Colorado.

BNSF Bluebonnet 2854 (GP39-2) runs light past the Valmont Power Plant in Boulder, Colorado.

It is getting harder and harder to find Bluebonnets working in the wild these days. Here BNSF 2854 (GP39-2) was found sitting in the yard in Longmont, Colorado.