Tehachapi Pass Train Loop! This is one of the most important engineering marvels in California railroad history. This loop de loop allows locomotive carrying heavy loads to travel from LA to San Francisco. | John Bartell

A southern Pacific heavy mixed freight descends Tehachapi Loop. A set of Santa Fe light engines waits its turn. From the Pentrex show "Cajon Pass & Tehachapi Loop" https://rfd.video/SoCal | 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

A BNSF freight crosses over itself at tunnel 9 and then we see the RB&BB Red Unit circus train. From the Pentrex show "Southern California Rails" https://rfd.video/SoCalRails | Railfan Depot

A Railway That Defied Granite And Time—Watch How The Tehachapi Loop Became One Of The Boldest Feats Ever Built In 1876! Dive Into The Untold Story Of The Tehachapi Loop— Carved Through Solid Granite In 1876 By 3,000 Chinese Workers Armed With Nothing More Than Gunpowder And Shovels. This Iconic Spiral Track Still Stands As One Of The Greatest Railway Achievements In The World. 👉 Follow Civilext for more engineering marvels #engineering #civilengineering #railwayengineering #infrastructure #mega