BNSF 8115 (ES44C4) gets a stack train moving in Spruce, Colorado as it heads south on the Joint Line.

BNSF 8115 (ES44C4) runs through Caste Rock, Colorado as it heads south on the Joint Line.

BNSF 8115 (ES44C4) leads a stack train over the Santa Fe Bridge in Larkspur, Colorado.

BNSF 8115 (ES44C4) leads a stack train through Spruce, Colorado as it runs south on the Joint Line towards Palmer Lake.

BNSF 8115 (ES44C4) heads into the S curves at Spruce, Colorado as it leads a stack train south on the Joint Line.

BNSF 8115 (ES44C4) leads a stack train through Spruce, Colorado as it runs south on the Joint Line.

BNSF 8115 (ES44C4) leads a JB Hunt stack train towards Acequia, Colorado as it runs south on the Joint Line.

BNSF 8115 (ES44C4) passes newly-installed power poles as it runs through Castle Rock, Colorado on the Joint Line.

BNSF 8115 (ES44C4) leads a stack train south on the Joint Line through fresh snow at Greenland, Colorado.

BNSF 8115 (ES44C4) passes through Castle Rock, Colorado as it heads southbound on the Joint Line.

BNSF 8115 (ES44C4) snakes a stack train south on the Joint Line through Spruce, Colorado.

BNSF 8115 (ES44C4) leads a stack train southbound on the Joint Line at Greenland, Colorado.

A BNSF stack train runs over the Santa Fe Bridge in Larkspur, Colorado.

BNSF 8115 (ES44C4) leads a stack train south on the Joint Line through Castle Rock, Colorado.

BNSF 8115 (ES44C4) crosses over the Santa Fe Bridge in Larkspur, Colorado.