RUHR

Its principal city is Essen

• Arnsberg is on it

• Bombed area in W.W. II

• Deutschland coal section

• Dortmund's region

• Duisburg's locale

• Duisburg's region

• Essen basin

• Essen locale

• Essen's area

• Essen's region

• Essen's river

• Essen's valley

• European coal area

• European coal center

• European industrial valley

• German coal region

• German coal valley

• German flower

• German industrial area

• German industrial center

• German industrial district

• German industrial locale

• German industrial region

• German industrial valley

• German mining region

• German region

• German region occupied by France and Belgium from 1923-25

• German river

• German river flowing into the Rhine

• German river or valley

• German Rust Belt

• German valley

• Germany's ___ Basin

• Germany's ___ Valley

• Historic mining region of Germany

• Industrial region of Germany

• Krupp family home

• Krupp's milieu

• Region bordering the Rhine

• Region near D

• Region of Germany

• Remscheid's region

• Rhine feeder

• Rhine tributary

• Rhine valley region

• River crossed by Allied forces in February 1945

• River of Duisburg

• River of Essen

• River of Germany's steel-making region

• River of northwest Germany

• River originating near Winterberg

• River past Dortmund

• River that passes by Essen, Germany

• River that passes through Essen, Germany

• River through M

• River to the Rhine

• Steel-producing valley

• Valley of Essen

• Valley of Europe

• Valley of industry

• West German region

• West Germany's river to the Rhine

• Wetter waterway

• Where Dortmund is

• Where Essen is

• Where Wuppertal is

• Witten's river

• A tributary of the Rhine

• A major industrial and coal mining region in the valley of the Ruhr river in northwestern Germany