Locations of blast furnaces in Europe in the early 21st century — between 2000 and 2015 years. In these places on the map, that are acting steelworks and plants or are closed factories and plants or just an areas of former steelworks and plants, may be more than one blast furnace. Red color — working blast furnaces, orange color — shut down blast furnaces, green — blast furnaces that they left as monuments of industrial history, gray — dismantled blast furnaces.