The ULTIMATE Cajon Sub Video | Part 1, San Bernardino to Alray @pentrexvideos
The ULTIMATE Cajon Sub Video | Part 1, San Bernardino to Alray  @pentrexvideos
Uploaded August 2026 | Updated September 2026, 17 hours ago
This is the BNSF Cajon Sub. We see both BNSF and Union Pacific trains since UP has trackage rights over the pass. This is a busy line, with cargo in and out of Los Angeles and its ports. In Part 1 of this 4 part series, we cover eastbound traffic between San Bernardino and Alray.

*No AI was used to bring this show to you.* Read about our AI Policy and how we get videos ready for YouTube at: Pentrex.com/AI

*About Pentrex:* For over 40 years we've been the leader in railroad video entertainment. See us at Pentrex.com and right here on YouTube, with the Official Pentrex Channel!

Pentrex also owns these railroad video entertainment brands: Highball Productions, Green Frog, Valhalla Video, Donner Rails, WB Video, Main Line Motion Pictures, Broken Knuckle Video, Midwest Video and distribute Revelation Video. You will see shows from all the brands on our channel.

*About this show:* From the great San Bernardino Valley to the high desert community of Barstow lies one of the busiest and most scenic mainlines in the country. At just over 81 miles in length, the BNSF Cajon Sub is a powerful artery that plays an integral role in moving trains to and from Southern California.

With its stiff climb over Cajon Pass, endless flow of traffic, and vistas of stark beauty, the Cajon Sub is a place of limitless photo opportunities for railroad photographers. Over 5 years Pentrex visited the sub numerous time, so we'll see the pass in all weather.

This is part 1 of a 4 part series. This video take a look at eastbound traffic between San Bernardino and Alray on Cajon Pass.

Across the four parts of this special series , we see over 500 trains!

Get the entire 4 part set, with better quality (no YouTube compression or commercials!) and a permanent addition to your collection at Pentrex.com.
pentrex.com/DVD-Ultimate-Cajon-Subdivision-4-Disc-DVD_ULTC-DVD

0:00 San Bernardino and yard
8:11 Eastbound out of SB
13:05 MP 75, Ono
19:33 Pacing Union Pacific
24:33 B&B Circus Train!
30:16 Amtrak's Southwest Chief
38:12 Trestle over Cajon Creek
43:17 UP on the Palmdale Cut-off
49:14 A three-way meet!
58:14 Special unit in paint for the Olympics
1:11:53 KCS gray leads the way
1:22:10 American Orient Express
1:32:39 BNSF on the main, UP on the Cut-off
1:47:04 Sullivan's Curve
2:01:53 UP on Canyon Siding
2:06:55 Famous Mormon Rocks
2:26:04 Grain train through the cut
2:54:50 Kaiser Hauler exits Tunnel 2
3:01:43 At Dell trains on Tracks 1 & 2

Thumbnail image by JPMueller99 via a CC-BY 2.0 license
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The ULTIMATE Cajon Sub Video | Part 1, San Bernardino to Alray

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