I ran across this web site called Rivers of Steel.
From 1875 to 1980, southwestern Pennsylvania was the Steel Making Capital of the World, producing the steel for some of America’s greatest icons such as the Brooklyn Bridge and the Empire State Building. During World War I and II, our steel workers carried a nation’s defense on their backs, producing more steel, armor and armaments in a single year than entire countries. While many of the region’s legendary mill sites have been dismantled, and it has been decades since the mills belched fire and smoke over Pittsburgh’s skyline, the enormity of the region’s steel-making contributions and its historical significance to the nation demand its story be told and its sites be preserved.
Created by Congress in 1996, the Rivers of Steel National Heritage Area is committed to preserving, interpreting, and managing the historic, cultural, and natural resources related to Big Steel and its related industries. Encompassing 3,000 square miles in the seven counties of Allegheny, Armstrong, Beaver, Westmoreland, Greene, Fayette, and Washington, Rivers of Steel is building on this area’s remarkable transition from heavy industry to high technology and diversified services as well as bolstering the new regional economy by promoting tourism and economic development based on this region’s historic industrial saga.