Tunnel 9 at the over/under that is Tehachapi Loop. Back in Southern Pacific days. From "Railfanning Cajon & Tehachapi" by Charles Smiley. Great footage from the 1970s through the 1990s. https://rfd.video/Cajon | Railfan Depot

Tehachapi Pass Railroad Loop! It's an engineering marvel that linked San Francisco to Los Angeles. Check out our interactive map with more than 400 road trip locations and ideas. https://www.abc10.com/bartells-backroads | John Bartell

Ever wondered what it would be like to take a ride through The Loop? Here's a peak of some of the amazing views via a passenger train traversing through The Loop and the beautiful mountains surrounding Tehachapi. | City of Tehachapi, CA Government

Hanging out at Victorville, CA we see several movements and then get to climb aboard a pair of Union Pacific helpers to assist a coal train! From the Pentrex show "Cajon Pass & Tehachapi Loop" https://rfd.video/SoCal | Railfan Depot

3.2K views · 15 reactions | A Railway That Defied Granite And...

The famous Tehachapi Loop is located in the Tehachapi Mountains of California and is a spiral loop on the Union Pacific Railroad (originally built by the Southern Pacific Railroad in the 1870s). The loop allows trains to manage a significant elevation gain over a relatively short distance. What makes it particularly famous is that long trains (over 4,000 feet) can actually pass over themselves as they navigate the loop. An average of 36 trains per day pass though here. The Tehachapi Loop has a 2