Photo By: Kevin Morgan

AMTK 181, AMTK 68, and AMTK 138 are all leading the westbound Zephyr (elephant-style) just west of Crescent. The head end is about to duck into Tunnel 19. In the distance, construction on the newly-raised Gross Reservoir dam is nearing completion. Email Questions or Comments to the Webmaster. User Comments (0) No comments posted yet. Click Here to add the first one!

3 views 0 comments Sunday, October 18, 2026 at 10:10:59 AM image date Location Information City or County and State Boulder County, CO Subdivision Moffat Tunnel (UP) Milepost or Control Point Tunnel 19 (MP 32.1, 1,059 ft) Train Information Railroad Amtrak Model P42DC Primary Unit Number AMTK 181 Paint Scheme Amtrak Phase 5b Symbol AMT5-17 Train Type California Zephyr (Amtrak) Additional Unit Number(s) AMTK 68, AMTK 138     Photo Information Camera Make/Model Hasselblad / Mavic 3 / Mavic 3 Pro [L2D-20c] ISO 150 900 Flash Did Not Fire Focal Length 24 mm Shutter 1/2000 seconds Aperture f/2.8

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