Public domain
One end of the Hull-Rust-Mahoning pit, largest open pit iron mine in the world, near Hibbing, Minnesota. The pit is two and a half miles long, three quarters of a mile wide and about four hundred feet deep
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineOne end of the Hull-Rust-Mahoning pit, largest open pit iron mine in the world, near Hibbing, Minnesota. The pit is two and a half miles long, three quarters of a mile wide and about four hundred fee. 1941-01-01. Vachon, John. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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