Dawn is breaking as the Amtrak's Winter Park Express Ski Train leaves the North Yard in Denver, Colorado and heads west towards the Colorado Rocky Mountains on the Moffat Tunnel Sub.
BNSF 9038 (SD70ACe) runs through a cold and snowy Tonville, Colorado as it heads to Denver on the Brush Sub.
BNSF 9072 (SD70ACe) shoves an empty coal train east on the Brush Sub through Hudson, Colorado and past a waiting westbound freight.
BNSF 5097 (Dash9) runs south on the Joint Line through Castle Rock, Colorado.
BNSF 2698 (GP39-3) runs light past the historic Colorado & Southern depot in Longmont, Colorado.
BNSF 1680 (SD40-2) moves to the servicing island to get fuel and sand and will head to the Denver Yard to shuffle rolling stock.
A pair of former Burlington Northern units (SD40-2 and GP39E) work the yard in downtown Denver, Colorado.
Storm clouds are moving in as the A Train of RTD of Denver (Hyundai Eagle P3) runs over an elevated section of track at Denver International Airport.
A railfan stops to get a picture of KCS 4738 (ES44AC) leading a coal train over the Rio Grande bridge in Monument, Colorado.
KCS 4738 (ES44AC) leads a coal train along the ridge at Spruce, Colorado as it heads south on the Joint Line.
KCS 4738 (ES44AC) leads a coal train past a rock formation in Palmer Lake, Colorado as it runs south on the Joint Line.
BNSF 5097 (Dash9) leads a Warbonnet over the Santa Fe Bridge in Larkspur, Colorado.
UP 1865 (SD40N) leads the local through Greeley, Colorado.
Snow falls on the Moffat Tunnel Sub as UP 5855 (AC4400-CTE) muscles a loaded coal train past a herd of yaks and well as a BNSF oil can train sitting on the siding in Tolland, Colorado.
UP 5667 (AC4400CW-CTE) drops off a train in the Union Pacific's North Yard in Denver, Colorado.
