Massive rear- and bottom-dump trucks, gigantic track and wheel dozers, humongous scrapers, graders, wheel loaders and hydraulic excavators! This super-duty volume profiles a wide variety of these incredible machines at work and at rest in the mining and excavation industry throughout the world. Some 125 color photographs and 25 historical photos illustrate the evolution, technology, and growth of these remarkable land leviathans. Sftbd., 9" x 10 1/2", 128 pgs., 25 b&w ill., 125 color. 21.95
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