The Iron Mine, Port Henry, New York (c. 1862) is a painting by Homer Dodge Martin in the collection of the Smithsonian American Art Museum[1] and measures 30 1/8 x 50 in.

After being loaded into barges the ore was taken to the nearby blast furnaces of the Bay State Iron Mine Company, and made into rails for railroads.

"Painted during the Civil War, Martin's canvas quietly asserted the primacy of the North, whose strength lay in its natural resources and manufacturing.

"[2] The nearby hills were "one of the largest iron deposits in the country and the home of dozens of the 19th century's most important iron-producing communities in America.

Collector William T. Evans purchased the painting for $5,000 to give to the Smithsonian American Art Museum (then called the National Gallery) and Knoedler shared some of the profits with Homer Martin's widow.