The large rock formation that gives Castle Rock, Colorado its name, looms in the background as BNSF 8390 (ES44C4) leads a loaded coal train south on the Joint Line at sunset.

BNSF 5606 (AC4400CW) crosses over a bridge in Castle Rock, Colorado as the sun gets ready to set behind the Colorado Rocky Mountains.

BNSF 5606 (AC4400CW) runs through Castle Rock, Colorado as a thunderstorm develops to the east.

The last minutes of setting sun shines on BNSF 5606 (AC4400CW) as it leads a coal train south on the Joint Line at Castle Rock, Colorado.

Here is a good look at the Siemens ALC-42 cab car on the end of the new Amtrak Siemens Airo Cascades train being ferried to Pueblo, Colorado for testing.

Amtrak's special train runs south on the Joint Line between Sedalia and Castle Rock, Colorado, taking the newest Siemens Airo Cascades train to Pueblo for testing.

BNSF 5340 (Dash9) leads a loaded coal train towards Castle Rock Colorado as it runs south on the Joint Line.

UP 7504 (ES44AC) leads a freight north on the Joint Line through Castle Rock, Colorado.

BNSF 5328 (Dash9) leads a long freight south on the Joint Line through Castle Rock, Colorado.

A fresh-looking BNSF 3320 (ES44ACH) leads a coal train under stormy skies south on the Joint Line through Castle Rock, Colorado.

BNSF 5097 (Dash9) leads a freight through the S curve at Castle Rock, Colorado

Castle Rock Famous landmark on the northbound track with Union Pacific manifest.

UP 7504 (ES44AC) runs northbound on the Joint Line past the rock formation that give Castle Rock, Colorado its name.

Stormy skies greet a minty looking BNSF 3320 (ES44ACH) as it leads a coal train south on the Joint Line through Castle Rock, Colorado.

Q Train Boeings over Palmer Lake from above Glen Park.