Yellow SteelIn Yellow Steel, the first overarching history of the earthmoving equipment industry, William Haycraft examines the tremendous increase in the scope of mining and construction projects, from the Suez Canal through the interstate highway system, made possible by innovations in earthmoving machinery. Led by Cyrus McCormick's invention in 1831 of a practical mechanical reaper, many of the builders of today's massive earthmoving machines began as makers