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  1. Tehachapi Loop - Wikipedia

    The Tehachapi Loop is a 3,779-foot-long (0.72 mi; 1.15 km) spiral, [1] or helix, on the Union Pacific Railroad Mojave Subdivision through Tehachapi Pass, of the Tehachapi Mountains in …

  2. Tehachapi Loop (Everything To Know Before A Visit)

    Located in Kern County, south-central California, it operates within the stunning Tehachapi Mountains. This magnificent engineering feat offers a unique viewing experience as trains …

  3. Tehachapi Loop Grade: Map, Passenger Trains, History

    Nov 6, 2024 · The Tehachapi Loop is a famous spiral section of a railroad through Tehachapi Pass in Southern California. Built by the Southern Pacific between 1874-1876, it is considered …

  4. CA's Tehachapi Loop Is An Engineering Marvel— How To Visit

    Jun 21, 2025 · The Tehachapi Loop is a 3,779 foot spiral in the Tehachapi Mountains, constructed in 1876 to help trains gain elevation gradually at a 2.2% grade. Keep reading to learn more …

  5. An engineering marvel for 150 years: The Tehachapi Loop

    Oct 20, 2025 · It's one of California's most significant engineering marvels. And even after 150 years, it's still a critical piece of infrastructure that keeps the economy. The story of the …

  6. California’s Tehachapi Loop - Trains

    Sep 22, 2024 · The loop itself was constructed between 1874 and 1876, with 3,000 workers from Guangzhou, China, carving through the mountainous terrain and laying track. Upon …

  7. Tehachapi Loop: A marvel of engineering and the laborers who …

    Built in the 1870s to connect the Central Valley and Southern California lines of the Southern Pacific Railroad Company, the roughly 3,800-foot Tehachapi Loop is the brainchild of civil …

  8. Tehachapi Loop

    Find wineries, breweries, outdoor adventures and more tucked away in a charming mountain-top community.

  9. California's impossible railroad loop where freight trains cross 70 ...

    Jun 30, 2025 · After studying the Tehachapi Mountains, Hood designed a loop where tracks circle a hill and cross over themselves. This spread the climb across more distance, keeping the …

  10. Tehachapi Loop - Visit Bakersfield

    The loop is roughly 3,800 feet long and covers a 77 foot incline. The passage is traversed daily by an average of 50 freight trains, making it the busiest single-track line in the United States.