The Appalachian Mountains are a real treasure mountain, and the stone bears who come across from the future know it very well. It is no exaggeration to say that after the founding of the people''s Republic of America, in a short period of more than 100 years, the United States surpassed the sun never setting Empire and became the world''s largest industrial producer. The fundamental reason lies in this mountain range with rich mineral resources.


    Before the oil boom, coal and iron were just the same