Introduction to the large-scale theme exhibition "The Long Black River": The large-scale themed exhibition "The Long Black River" has an exhibition area of 3,500 square meters and an exhibition line of 800 meters. It is divided into five parts and fourteen display units: "History of Coal", "Westernization Movement and the Rise of China's Modern Coal Industry", "One Coal Mine Holds Up Two Cities", "They Are Especially Able to Fight" and "A Hundred-Year-Old Building" . It traces the generation and origin of coal and the long history of ancient coal mining, shows the historical traces of the Kailuan Coal Mine as the first modern road mine in China, and reproduces the indelible urban cultural memory of Tangshan, which was prospered because of coal, and eulogized It embodies the indomitable and courageous spirit of generations of miners who are "especially capable of fighting" and sings the aspirational song of a new generation of Kailuan people to pass on the firepower to make a century-old enterprise last forever and achieve leapfrog development.