Photo ID: 104935 Date Shot Photo By Saturday, January 17, 2015 Kevin Morgan Location Times Viewed East of Silt Silt, CO 1579 (Add a Comment) Subdivision Railroad Glenwood Springs (UP) Union Pacific, Amtrak Making track speed (70 MPH), the westbound Zephyr just hit the detector at MP 375.4 between Newcastle and Silt. An SD70M has been borrowed from UP due to some mechanical issues with one of the P42DCs. Email Questions or Comments to the Webmaster or add a comment to the picture.