BNSF heavies stack up in the engine servicing yard in Denver, Colorado.

A loaded oil train has just crested the 5,562 foot high Bozeman Pass and starts easing down the 1.9% grade into the namesake town of Bozeman.

14,748 tons of crude oil struggle up the 1.8% grade on the east side of Bozeman Pass.

Hustling it's heavy manifest across the 700-foot long, 1944-built steel trestle spanning the banks of the Colorado River, BNSF 8556 and roughly 10 of its cars have crossed the state line and into ... (more)