EVB2937903: Miner John Palumbo, Jr. (1921-2008), poses on the edge of the Hull-Rust-Mahoning iron pit mine in Minnesota's Mesabi Iron Range in 1942. The pit was two and a half miles long, three quarters of a mile wide, and provided 25% of U.S. iron ore production during World War II, Vachon, John (1914-75) / Bridgeman Images