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Photo ID: 113586
Date Shot
Photo By
Friday, March 20, 2026 Kevin Morgan
Location
Times Viewed
Big Ten Curve (MP 19.5 to MP 20.2)
Arvada, CO
98
(Add a Comment)
Subdivision
Railroad
Moffat Tunnel (UP) BNSF
One of those times when the shot worked out just perfect! As the head end of the Provo-Denver approaches the west switch of Rocky, a pair of DPUs are coming around the east edge of Big Ten Loop on the tail end of the train.
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Photo ID: 113585
Date Shot
Photo By
Friday, March 20, 2026 Kevin Morgan
Location
Times Viewed
Big Ten Curve (MP 19.5 to MP 20.2)
Arvada, CO
94
(Add a Comment)
Subdivision
Railroad
Moffat Tunnel (UP) BNSF
A pair of ES44ACs bring up the end of the eastbound Provo-Denver around the east edge of the Big Ten Loop. The train is relatively short with 63 cars, but BNSF has three units on the point and two points on the rear.
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Photo ID: 113584
Date Shot
Photo By
Friday, March 20, 2026 Kevin Morgan
Location
Times Viewed
Big Ten Curve (MP 19.5 to MP 20.2)
Arvada, CO
88
(Add a Comment)
Subdivision
Railroad
Moffat Tunnel (UP) BNSF
Along the south edge of Big Ten Loop, this eastbound BNSF manifest is continuing east toward Denver. At the moment, it is running a bit below track speed. UP has some slow orders out due to some track work they have been doing in the area.
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Photo ID: 113579
Date Shot
Photo By
Friday, March 20, 2026 Kevin Morgan
Location
Times Viewed
Big Ten Curve (MP 19.5 to MP 20.2)
Arvada, CO
118
(Add a Comment)
Subdivision
Railroad
Moffat Tunnel (UP) Amtrak
This seemed like the perfect angle, along the east side of Big Ten Loop, for a shot of the morning Zephyr as it heads west. You can see Tunnel 1 in the distance, and even the east portal of Tunnel 4 further off in the distance.
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Photo ID: 113578
Date Shot
Photo By
Friday, March 20, 2026 Kevin Morgan
Location
Times Viewed
Big Ten Curve (MP 19.5 to MP 20.2)
Arvada, CO
117
(Add a Comment)
Subdivision
Railroad
Moffat Tunnel (UP) Amtrak
On the lower north edge of Big Ten Loop, the morning Zephyr is starting its climb. As we move in to Spring, the Denver area is still in the midst of the driest winter season in recorded history. It is unlikely the foliage is going to green up as much this spring compared to a typical spring.
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Photo ID: 113562
Date Shot
Photo By
Monday, March 16, 2026 Kevin Morgan
Location
Times Viewed
Big Ten Curve (MP 19.5 to MP 20.2)
Arvada, CO
112
(Add a Comment)
Subdivision
Railroad
Moffat Tunnel (UP) Amtrak
After one of the driest winters in recorded history, some fresh snow finally fell Saturday night and Sunday night in the Denver area. However, with a forecasted high of 80°F (27°C) in just two days, it is possible this is the last blanket of snow we will see this season.
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Photo ID: 113383
Date Shot
Photo By
Wednesday, November 26, 2025 Kevin Morgan
Location
Times Viewed
Big Ten Curve (MP 19.5 to MP 20.2)
Arvada, CO
190
(Add a Comment)
Subdivision
Railroad
Moffat Tunnel (UP) Amtrak
The paint on the nose of AMTK 83 is a little worse for wear as the Zephyr climbs the north edge of Big Ten.
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Photo ID: 113278
Date Shot
Photo By
Monday, October 27, 2025 Kevin Morgan
Location
Times Viewed
Big Ten Curve (MP 19.5 to MP 20.2)
Arvada, CO
156
(Add a Comment)
Subdivision
Railroad
Moffat Tunnel (UP) Union Pacific
A UP (tie) work train is climbing west out of Rocky, on its way up Big Ten Loop. Above the work train, in the siding at Eisele (Clay), an eastbound UP manifest is patiently waiting its turn to head east. It has held in the siding for two westbounds (the Zephyr and BNSF's Denver-Provo), and is now waiting on the work train.
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Photo ID: 113180
Date Shot
Photo By
Saturday, September 27, 2025 Kevin Morgan
Location
Times Viewed
Big Ten Curve (MP 19.5 to MP 20.2)
Arvada, CO
226
(Add a Comment)
Subdivision
Railroad
Moffat Tunnel (UP) Union Pacific
At first glance, this might appear to be a unit covered hopper train. While it is almost exclusively covered hoppers, you can see two tank cars off in the distance. This is an extra train, with the symbol MDVBOX-27. All the cars on this train are headed for industries on the Craig Branch. Normally, the cars would be added to the MNYGJ and the cars would be set out at Bond. However, the sheer volume of cars have necessitated this extra train. A rare sight indeed on the Moffat.
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Photo ID: 113032
Date Shot
Photo By
Thursday, September 11, 2025 Kevin Morgan
Location
Times Viewed
Big Ten Curve (MP 19.5 to MP 20.2)
Arvada, CO
462
(Add a Comment)
Subdivision
Railroad
Moffat Tunnel (UP) Amtrak
Clouds slowly float around in the area as the morning Zephyr makes its way up and around Big Ten Curve.
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Photo ID: 113031
Date Shot
Photo By
Thursday, September 11, 2025 Kevin Morgan
Location
Times Viewed
Big Ten Curve (MP 19.5 to MP 20.2)
Arvada, CO
466
(Add a Comment)
Subdivision
Railroad
Moffat Tunnel (UP) Amtrak
AMTK 204 is the first P42DC in the 200s (as far as I know) to sport the new Phase 7 paint scheme. Slowly, Amtrak is going through the process of repainting the entire P42DC fleet in Phase 7 colors. Here, the morning Zephyr is climbing the north edge of Big Ten curve.
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Photo ID: 112962
Date Shot
Photo By
Friday, August 29, 2025 Kevin Morgan
Location
Times Viewed
Big Ten Curve (MP 19.5 to MP 20.2)
Arvada, CO
538
(Add a Comment)
Subdivision
Railroad
Moffat Tunnel (UP) BNSF
It is August, which means sunflowers are pretty much in full bloom in the Denver-Metro area. Multiple sunflowers are growing on the south edge of Big Ten Curve as BNSF's Provo-Denver heads east on the final 20-ish miles of the journey.
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Photo ID: 112941
Date Shot
Photo By
Wednesday, August 27, 2025 Kevin Morgan
Location
Times Viewed
Big Ten Curve (MP 19.5 to MP 20.2)
Arvada, CO
635
(Add a Comment)
Subdivision
Railroad
Moffat Tunnel (UP) Union Pacific
UP 4533 and train have slowed to a stop at a red signal at the east switch of Eisele (Clay). DS-378 indicated there is a phantom occupancy on the main, and that the engineering special will need to be flagged by the red signal.
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Photo ID: 112940
Date Shot
Photo By
Wednesday, August 27, 2025 Kevin Morgan
Location
Times Viewed
Big Ten Curve (MP 19.5 to MP 20.2)
Arvada, CO
539
(Add a Comment)
Subdivision
Railroad
Moffat Tunnel (UP) Union Pacific
There have been quite a few UP passenger trains running in the Denver area this summer! In June, UP's passenger equipment ran west over the Moffat. In July, UP 4014 brought a train from Cheyenne to Denver. Then, UP 1616 did the same thing on the Greeley Sub. Later, passenger equipment went west over the Moffat. Now, a UP engineering special heads west, climbing the north leg of Big Ten Curve, with a single SD70M for power.
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Photo ID: 112934
Date Shot
Photo By
Monday, August 11, 2025 Kevin Morgan
Location
Times Viewed
Big Ten Curve (MP 19.5 to MP 20.2)
Arvada, CO
603
(Add a Comment)
Subdivision
Railroad
Moffat Tunnel (UP) NS, BNSF
This eastbound oil train has been told that 31st Street yard in Denver currently has no room for the train, so it is going to tie down in the siding at Rocky. The van driver that is picking the crew up is new to the territory...she drove past Rocky and was halfway up Big Ten when she met the eastbound train. The crew told her she should turn around and go back to the east end of Rocky. You can see the van on the right side of the shot, getting ready to turn around.
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