Abstract
When we trace the development of iron and steel industry of the U. S A., we can find the movement of the location factor. The early location factor was in the eastern coastal plain and then it moved to the regions in which Pittsburgh and Chicago are the central cities. To clearify the historical change of location factor, we must know the geographical distribution of stuff and fuel and their relation to the industrial regions in each period. Relating to stub problem, we shall analyse the transportation cost and character of iron ore and coal. Above all the transportation cost in the important factor. The market of iron and steel iudustry is different from that of general industry. That is, the heavy industrial region is the direct market for iron and steel industry and the general consumption market is connected with it indirectly through the heavy industrial region. From the point of these location factors mentioned above, they have 4 iron aud steel industrial regions in the U. S. A. which we shall illustrate in detail.
