Storm clouds to the east of Keenesburg, Colorado provide a dramatic background as BNSF 7678 (ES44AC) runs west on the Brush Sub.

BNSF 7678 (ES44AC) runs into sunlight as storm clouds develop east of Keenesburg, Colorado.

BNSF 1925 (SD40-2) leads a short train with a crane car as they try to outrun severe weather on the Brush Sub.

BNSF 6341 (ES44AC) sits in Roggen, Colorado, waiting for the expiration of a severe storm warning that has spawned hail, a tornado warning and a hold on all rail traffic.

Durango & Silverton 493 sits on the Durango Turntable on a cool May night.

Durango & Silverton 476 crosses the Animas River Bridge as it departs Durango wearing a diamond stack and box headlight on an extra train to Silverton.

BNSF 9138 (SD70ACe) runs north through Larkspur, Colorado on the Joint Line.

BNSF 8470 (SD70ACe) runs over the Santa Fe Bridge in Larkspur, Colorado.

BNSF 6190 (ES44AC) runs towards Palmer Lake, Colorado as storm clouds develop over the Joint Line

BNSF 9197 (SD70ACe) runs west on the Brush Sub through Tonville, Colorado.

Storm clouds develop on the Brush Sub as BNSF 7678 leads a freight towards Keenesburg, Colorado.

Durango & Silverton 480 rounds the horseshoe curve on The Highline with its mixed train on a sunny May afternoon.

A pair of Union Pacific SD70M's bring a local through the smaller DeBeque Canyon on its way back to Grand Junction running ahead of Amtrak #5.

Amtrak engine #71 (P42DC) leads the California Zephyr into downtown Denver, Colorado.

S&S Shortline Leasing's #1393 (MP15AC) works the Budweiser brewing facility in Fort Collins, Colorado.