help required with last one
13a chief coal-mining and industial region of Germany north-west of the sauerland plateau in north rhine Westphalia
any help much appreciated thanks in advance
Ruhr definition of Ruhr in the Free Online Encyclopedia
In the creation of the new state of North Rhine-Westphalia in 1946, ... the chief coalmining and industrial region of Germany: in North Rhine-Westphalia around the valley of the River ... chiefly coking, coal; the first mention of coal mining in the Ruhr goes back to the 14th century. In the ...
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