View of freighter at ore docks in Marquette, Michigan. Printed on front: "Mammoth ore docks, Marquette, Mich." Printed on back: "The mammoth ore docks are owned by the Duluth, South Shore & Atlantic Ry. and the Lake Superior & Ishpeming Ry. These docks handle over four million tons of ore annually. Tourists marvel at the speed in which ore ships are loaded. Made in U.S.A. by E.C. Kropp Co., Milwaukee, Wis."
