Horseshoe Curve
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The Pennsylvania Railroad's Horseshoe Curve is known worldwide as an engineering wonder.
This landmark, located just west of Altoona, opened to traffic on February 15, 1854, and it enabled the Pennsylvania railroad line to climb the Allegheny Mountains and the eastern continental divide. The Horseshoe Curve's construction impacted railroad design and development for mountainous terrain everywhere, enabling access to coal and other raw materials essential for the industrial age. J. Edgar Thom...




