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

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