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Johnstown, Pennsylvania sits in a valley of the Allegheny Mountains. It was always prone to flooding but the construction of a dam in the mid 1800's increased its risk. In 1889 the ill-maintained dam gave way and thousands lost their lives. Prepare to shake a fist at man named Unger.
Johnstown, Pennsylvania sits in a valley of the Allegheny Mountains. It was always prone to flooding but the construction of a dam in the mid 1800's increased its risk. In 1889 the ill-maintained dam gave way and thousands lost their lives. Prepare to shake a fist at man named Unger.