http://de.wikipedia.org/wiki/Rust_Belt

Der Rust Belt ("Rostgürtel"), früher Manufacturing Belt, neutral auch Snow Belt (wobei der gesamte Snow Belt zusätzlich noch die Küstengebiete der Staaten Wisconsin und New York umfasst), ist das älteste Industriegebiet der USA. Es erstreckt sich im Nordosten der USA, entlang der Großen Seen von Chicago über Boston, Washington D.C. bis nach New York.

http://en.wikipedia.org/wiki/Rust_belt

The Rust Belt, sometimes called the Manufacturing Belt, is an area in parts of the Northeastern United States, Mid-Atlantic States, and portions of the Upper Midwest. The region can be broadly defined as the region beginning west of the BosWash corridor and running west to Minnesota, particularly the city of Duluth and the Iron Range. Because the area's economy was defined by the steel industry and other heavy manufacturing, Minnesota – with its massive iron mining operations integral to steel – is often considered to be "where the Rust Belt begins". The area immediate to Lake Erie is considered to be the "hub" of the Rust Belt. The region extends southward to the beginnings of the coal-mining regions of Appalachia, north to the Great Lakes and includes manufacturing regions of southern Ontario and Quebec in Canada.

hab ich für die Region schon gehört

Rostgürtel (Stahlgürtel war mal, und soll natürlich wieder werden ;-)