Union Pacific’s manifest freight from Salt Lake City to Denver drops downgrade at Eisele, Colorado, on the afternoon of February 13, 2016. Above the locomotives is the west switch at Rocky, where ... (more)

An eastbound BNSF manifest freight fills Big 10 Curve as it drops downgrade from Eisele to Rocky, Colorado, on the afternoon of February 13, 2016.

With some recent moisture, even the grasses on the front range mountains have started to turn green. On the afternoon of May 4, 2018, Amtrak’s eastbound California Zephyr descends the trackage thr... (more)

A westbound BNSF manifest freight climbs the 2% grade through Eisele (formerly Clay), Colorado, on the afternoon of June 9, 2014. Leading the train is repainted GE C44-9W No. 4490, followed by AC4... (more)

An eastbound BNSF freight fills Big 10 Curve between Eisele and Rocky, Colorado, on the warm afternoon of February 9, 2015. The 76-car train is made up of mostly tank cars—73 to be exact.

An eastbound BNSF manifest freight encircles Big 10 Curve between Eisele (Clay) and Rocky, Colorado, on February 14, 2015.

Big 10 Belles
Two Kansas City Southern EMD SD70ACes power a westbound Union Pacific oil train around Big 10 Curve west of Rocky, Colorado, on a beautiful 64° February 13, 2016. The 73-c... (more)

An eastbound Union Pacific coal load drops downgrade through Eisele (formerly Clay), Colorado, on August 11, 2015. Three levels of track can be seen from this location near Big 10 Curve. The train... (more)

A Union Pacific XCLX (Xcel Energy) coal train passes through Eisele (formerly Clay), Colorado, on the afternoon of June 9, 2013. Waiting for the eastbound is a coal empty sitting at Rocky siding d... (more)

Amtrak’s eastbound “Winter Park Express” ski train passes over a fill approaching Big 10 Curve just east of Eisele (Clay), Colorado, on March 15, 2015. In a couple of minutes, the train will be tr... (more)

Elk graze on vegetation in the open space as the westbound Ski Train led by Amtrak's "Veterans Unit" no. 42 rolls right on through Eisele heading west to the ski resort in Winter Park.

An eastbound Union Pacific coal train traverses Big 10 Curve at Eisele (formerly Clay), Colorado, on February 14, 2015. The head end of the train is already out of sight on the left and approachin... (more)

An eastbound Union Pacific coal train more than fills Big 10 Curve between Eisele (formerly Clay) and Rocky, Colorado, on a warm Valentines Day 2015. A pair of GE ES44ACs are on the head end (UP N... (more)

As the head end of an eastbound Union Pacific coal train traverses Big 10 Curve in the background, the mid-train DPUs leave Eisele (formerly Clay) in the foreground. Two other tracks can also be s... (more)

Lotsa eights
Union Pacific coal load CEYPS curves past milepost 22 just west of Eisele (Clay), Colorado, early in the morning of February 9, 2015. UP No. 8888 built in 2014, is a “heavi... (more)