In 1948, bustling steel mills and coke plants lined the Monongahela River, from Donora, a mill town of 14,000 people, north to Pittsburgh, 30 miles away. The Donora Zinc Works, a subsidiary of United States Steel Corporation, covered four of ...

  • Loading...
locked icon

Sign in to access this content

Get a 30 day FREE TRIAL

  • Watch videos from a variety of sources bringing classroom topics to life
  • Read modern, diverse business cases
  • Explore hundreds of books and reference titles