Photo By: Kevin Morgan

A somewhat rare UP coal empty crosses CO-72 as it heads west on a green signal on the main at Cliff. At this spot, the tracks run between South Boulder Creek and the highway. Email Questions or Comments to the Webmaster. User Comments (0) No comments posted yet. Click Here to add the first one!

4 views 0 comments Friday, June 27, 2025 at 3:56:41 PM image date Location Information City or County and State Boulder County, CO Subdivision Moffat Tunnel (UP) Milepost or Control Point Cliff (6,900 ft) Train Information Railroad Union Pacific Model AC4400CW Primary Unit Number UP 6397 Paint Scheme UP Flag/Lightning/Wings Symbol Train Type Unit Coal Primary Unit Past Number(s) ex-SP 351 Photo Information Camera Make/Model DJI / Mavic 3 Pro [FC4370] ISO 100 Flash Did Not Fire Focal Length 166 mm Shutter 1/320 seconds Aperture f/3.4

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