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Photo ID: 106762
Date Shot
Photo By
Monday, December 4, 2017 Kevin Morgan
Location
Times Viewed
West of Mesa
Aurora, CO
1478
(Add a Comment)
Subdivision
Railroad
Limon (UP) Regional Transportation District
An RTD A-Line train crosses over UP's Limon Sub just east of Mesa. This single track bridge is close to a mile long and takes the A-Line from along Smith Road and the Limon Sub over the tracks and over I-70 in order to parallel Pena Blvd to DIA. This particular commuter train is headed west, toward Union Station.
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Photo ID: 106761
Date Shot
Photo By
Monday, December 4, 2017 Kevin Morgan
Location
Times Viewed
West of Mesa
Aurora, CO
1344
(Add a Comment)
Subdivision
Railroad
Limon (UP) Regional Transportation District
Missed it by that much! Was hoping to get a shot of an A-Line commuter train crossing over a UP special with a quartet of electric engines. Alas, the A-Line train came by about 20 seconds too late.
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Photo ID: 106760
Date Shot
Photo By
Monday, December 4, 2017 Kevin Morgan
Location
Times Viewed
West of Mesa
Aurora, CO
1284
(Add a Comment)
Subdivision
Railroad
Limon (UP) MARC
Three Siemens-built SC-44 are being transported by Union Pacific from California to their interhchange point...probably either Kansas City or St Louis. These units are going to enter commuter service on MARC.
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Photo ID: 106759
Date Shot
Photo By
Monday, December 4, 2017 Kevin Morgan
Location
Times Viewed
West of Mesa
Aurora, CO
1371
(Add a Comment)
Subdivision
Railroad
Limon (UP) SEPTA
This is a Siemens-built ACS-64 built for a Pennsylvania-based commuter (Septa). This is the first of 15 such units that have been ordered by Septa and are pending delivery from Siemens.
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Photo ID: 106758
Date Shot
Photo By
Monday, December 4, 2017 Kevin Morgan
Location
Times Viewed
West of Mesa
Denver, CO
1514
(Add a Comment)
Subdivision
Railroad
Limon (UP) Union Pacific
A pair of UP SD70Ms are pulling four electric units that will be used on commuter rail. The units were built by Siemens and are headed for Pennsylvania. RTD's "A Line", which runs from Union Station to Denver International Airport, follows UP's Limon Sub for much of the run. Here, just west of Airport Blvd, the A-Line ascends and crosses over the Limon Sub. If only a commuter train has passed over right at this moment!
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Photo ID: 106757
Date Shot
Photo By
Monday, December 4, 2017 Kevin Morgan
Location
Times Viewed
West of Mesa
Aurora, CO
1293
(Add a Comment)
Subdivision
Railroad
Limon (UP) Union Pacific
You may not see it at first, but there are actually two trains in this shot. The first is the Roydale Local, led by a pair of GP38-2s. The second is a UP special that is transporting four Siemens electric units. The special is holding at a red signal until the local can get in the clear at Mesa.
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Photo ID: 106264
Date Shot
Photo By
Wednesday, October 19, 2016 Kevin Morgan
Location
Times Viewed
CP K625 (East Mesa)
Aurora, CO
1418
(Add a Comment)
Subdivision
Railroad
Limon (UP) Union Pacific
There are a handful of industries on UP's Limon Sub that are east of the immediate Denver-Metro area. On this Wednesday morning, the Roydale Switcher is return back toward town with three boxcars in tow. The pair of GP15-1s are taking the siding to meet an eastbound coal load.
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Photo ID: 104571
Date Shot
Photo By
Sunday, March 2, 2014 Kevin Morgan
Location
Times Viewed
Mesa (8,880ft)
Aurora, CO
1573
(Add a Comment)
Subdivision
Railroad
Limon (UP) Union Pacific
While loaded coal trains can be some of the heaviest trains on a railroad, empty coal trains can be some of the lightest. This westbound empty, entering the siding at Mesa, has a pair of units for power. They are distributed and running in a 1x0x1 setup!
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Photo ID: 103882
Date Shot
Photo By
Monday, September 5, 2011 Kevin Morgan
Location
Times Viewed
CP K627 (West Mesa)
Aurora, CO
1743
(Add a Comment)
Subdivision
Railroad
Limon (UP) Union Pacific
Where does the time go? Seems like just yesterday the AC4400CW was one of the newest things on the rails! Now, UP 7008 represents a unit that is nearly 20 years old while the truly newest representative from General Electric, the ES44AC, sits in the siding at Mesa.
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Photo ID: 103881
Date Shot
Photo By
Monday, September 5, 2011 Kevin Morgan
Location
Times Viewed
CP K627 (West Mesa)
Aurora, CO
1689
(Add a Comment)
Subdivision
Railroad
Limon (UP) Union Pacific
In the late 1990's, UP had 10 AC4400CW's on lease from GECX. The units were numbered GECX 4000-4009. The units wore UP colors, but instead of "Union Pacific" on the long hood, they had "GECX". The units were ultimately purchased by UP and put in the roster. They wound up as UP 7000-7009. Here, you can see the number "7" patched on the cab over the "4" on UP 7008.

With the addition of UP 7008, I've managed to shoot four out of the ten ex-GECX units to date.
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Photo ID: 103880
Date Shot
Photo By
Monday, September 5, 2011 Kevin Morgan
Location
Times Viewed
CP K627 (West Mesa)
Aurora, CO
1604
(Add a Comment)
Subdivision
Railroad
Limon (UP) Union Pacific
This grain train proceeds east on the main at Mesa after departing Sable with a fresh crew. The train is actually a reroute that is running through Colorado due to a derailment in Emmett, KS. The train originated in Milford, UT and is headed for Salina, KS.
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Photo ID: 103879
Date Shot
Photo By
Monday, September 5, 2011 Kevin Morgan
Location
Times Viewed
CP K627 (West Mesa)
Aurora, CO
1742
(Add a Comment)
Subdivision
Railroad
Limon (UP) Union Pacific
Labor Day finds this westbound coal empty sitting in the siding at Mesa. A zone crew has just untied the train and is preparing to take it in to North Yard for a power swap. Currently, the train is being led by an ES44AC, which is somewhat unusual for UP coal trains in Colorado.

Before continuing to the yard, however, the train must first wait for two eastbounds to come by before departing.
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Photo ID: 102070
Date Shot
Photo By
Thursday, May 15, 2008 Kevin Morgan
Location
Times Viewed
Mesa (K627)
Aurora, CO
1873
(Add a Comment)
Subdivision
Railroad
Limon (UP) Union Pacific
With light almost gone in the western sky, this unit pipe train is entering the siding at Mesa to clear up for an eastbound coal load. Even though the Limon Sub operates under track warrants, there is an ABS island at both ends of Mesa, allowing the dispatcher to throw the switch, saving the crew quite a bit of time.
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Photo ID: 101892
Date Shot
Photo By
Sunday, March 2, 2008 Kevin Morgan
Location
Times Viewed
Mesa (K627)
Aurora, CO
2071
(Add a Comment)
Subdivision
Railroad
Limon (UP) Union Pacific
Can you say blowing snow / white out conditions? A westbound coal empty approaches the west switch of Mesa on UP's Limon Subdivision in Aurora. Temperatures fell nearly 50 degrees overnight and this March blizzard settled into the area.
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Photo ID: 101718
Date Shot
Photo By
Saturday, November 24, 2007 Kevin Morgan
Location
Times Viewed
Mesa
Aurora, CO
1636
(Add a Comment)
Subdivision
Railroad
Limon (UP) Union Pacific
A westbound coal empty, led by 6661, holds the siding at Mesa as the end helpers from a coal load on the main pass by, moving at track speed. The UP 7655 is an ES44AC, delivered to UP at the beginning of June, 2007.
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