Storm clouds are brewing as BNSF 2857 (GP39-2) leads the Buck Local towards the siding in Broomfield, Colorado.

BNSF 2857 (GP39-2) leads the Buck Local through Boulder, Colorado as it heads south on the Front Range Sub.

BNSF 2857 (GP39-2) runs towards Broomfield, Colorado on the Front Range Sub.

BNSF 2857 (GP39-2) leads the Buck Local through Gunbarrel, Colorado on the Front Range Sub.

BNSF 2857 (GP39-2) leads the buck local towards Broomfield, Colorado on the Front Range Sub.

BNSF 2857 (GP39-2) waits on a siding in Longmont, Colorado for the call to action.

BNSF 2857 (GP39-2) muscles a freight towards the Broomfield Siding on the Front Range Sub.

BNSF 2857 (GP39-2) sits at the depot in Longmont, Colorado as the crew gets orders for a run to clients in Lafayette.

BNSF 2857 (GP39-2) heads into the Broomfield Siding on the Front Range Sub.

BNSF 2857 (GP39-2) runs south of Longmont, Colorado on the Front Range Sub towards Broomfield.

A pair of BNSF Geeps lead a freight through Boulder, Colorado on the Front Range Sub.

BNSF 2857 (GP39-2) runs through past apartments in Broomfield, Colorado.

BNSF 2857 (GP39-2) runs through Boulder, Colorado on the way to Louisville.

BNSF 2857 (GP39-2) passes the Denver to Laurel Montana on the Front Range Sub in Broomfield, Colorado.

BNSF 2857 (GP39-2) meets the Denver to Laurel Montana on the Front Range Sub in Broomfield, Colorado.