An iron and steel factory in the United States. Powerful and heavy rollers in a bloom mill roll a steel ingot into a rod. The ingot enters the rollers, moves back and forth in the rollers and changes shape. Workers tend a rolling machinery. White hot rods are drawn into desired sizes. The rods in several different machines. The workers operate machinery and move the rods with prongs. They guide the rods into a cutting machine.
Steel centers of the United States. Animated map shows steel center locations around the Great Lakes. Activity at a steel mill in Pittsburgh. A view of steel mills, a river and railroad tracks.
Uses of steel in the United States. A man uses steel for construction of bridges, buildings and ships. A large suspension bridge. Ships move under the bridge.
The lumber industry in forest areas of the United States. Animated map shows the Northern Forest, Hardwood Forest, Southern Forest, Rocky Mountain Forest and the Pacific Forest. Snow covered roofs at a lumber camp in northern Michigan during the winter. Workers come out for their daily work. Horse drawn carts on a snow covered surface.
The lumber industry in forest areas of the United States. Two men fell a tree with a saw. The tree falls on the ground. Logs are drawn to a convenient place with the help of horse drawn carts. A low loading sled makes it easy to load the logs. Group of men load these logs on flatcars. A train loaded with logs departs from a station.
The lumber industry in forest areas of the United States. Wooden logs are dragged and pulled with the help of a crane. The logs are moved by an aerial cable. The logs slung from axles of large two wheeled carts. These carts are hauled by horses. Workers in Michigan use a crane to load logs onto flatcars.
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