A frosty BNSF 7559 (ES44DC) sits in the bitter cold and fog on the siding at West Barr Lake as the BNSF Z train passes.

Snow showers coat the grass near Larkspur, Colorado as BNSF 5692 (AC4400CW) leads an empty coal train back to Denver.

Snow is falling as BNSF 4173 (Dash9) leads a military train through West Tonville, Colorado.

BNSF 7147 (ES44C4) has solo duty leading a windmill blade train through Spruce, Colorado.

BNSF 9317 (SD70ACe) leads a freight through the scenic area of Palmer Lake, Colorado.

Amtrak engine #15 leads the morning California Zephyr #5 train through the snow west of Pinecliffe, Colorado on its way to the Moffat Tunnel.

RTD commuter rail train #4031 (Hyundai Eagle P3) passes the BNSF engine servicing facility in downtown Denver as it heads towards Denver's Union Station.

A stunning sunrise greeted passengers on RTD's commuter rail 'Train to the Plane' which shuttles passengers from Denver International Airport to Denver's downtown Union Station.

Four BNSF motors led by 4191 (Dash9) pull an autorack / mixed freight through the stretch between Castle Rock and Sedalia, Colorado.

BNSF 7137 (ES44DC) leads a freight through Castle Rock, Colorado on the Joint Line.

A meet of coal trains in Greenland Colorado has BNSF 6289 (ES44AC) with helping Ferromex unit pulling a loaded coal southbound, meeting an empty BNSF coal running northbound on the Joint Line.

The 'Golden Hour' at sunrise catches BNSF 9164 (SD70ACe) helping an empty coal train get through Greenland, Colorado on its way to Denver.

A pair of Grinstein executive SD70MACs had DPU duty shoving a loaded coal train through Spruce, Colorado.

A pair of Grinstein executive SD70MACs were caught shoving a loaded coal train through Greenland, Colorado.

The #5 California Zephyr out of Denver had extra cars today (total of 10) compared to the scaled back COVID consists, although it was still missing the baggage car. Here we see it exiting Tunnel ... (more)