To help trains manage the drop in grade from Coal Creek Canyon to Rocky, Colorado, there was constructed a series of sweeping curves known as Big Ten and Little Ten curves that help with the trans... (more)
With the Boulder Flatirons in the background, the California Zephyr rounds Little Ten Curve and will soon transition through the Big Ten Curve as it climbs the foothills towards the Colorado Rocky... (more)
Amtrak 73 (P42DC) leads the California Zephyr through Rocky on its way into the Colorado Rocky Mountains. The windmills in the background are at the National Center for Atmospheric Research (NCA... (more)
An eastbound Union Pacific coal train drops downgrade into Rocky, Colorado, while heading east on the former Rio Grande Moffat Tunnel route on April 13, 2002.