Altoona, PA, United States
Pennsylvania Railroad Shops. The PRR built its first repair facilities here in 1850 and opened its first track to Altoona during the same year. By 1925, Altoona was home to the nation's largest concentration of railroad shops, with 16,500 people employed in several locations.
Listen to the audio guide for Blue plaque № 28514 Free on WIP — starts by itself when you arrive, even with the screen off