National Geographic : 1944 Dec
0 A Karaganda Locomotive Drags Dump Cars through a Canyon of Coal; an American-made Shovel Takes aSeven-ton Bite ofOverburden Low-cost operation is indicated by the fact that overlying dirt is no thicker than the coal. A long ladder gives ameasure ofthe seam. More than 50billion tons lie in reserve. Karaganda and Kuznetsk Basin coal, smelting Magnitogorsk iron ore, helped save Russia when the Nazis overran the Donets Basin (page 673).