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- Ford Motor Company's Imperial Iron Ore Mine, Michigamme, Michigan, 1924 - Henry Ford organized the Michigan Iron, Land and Lumber Company in 1920 to administer Ford-owned natural resources in Michigan's Upper Peninsula. The Imperial Mine near Michigamme, Michigan, produced iron ore for Ford factories. The complex included a powerhouse, a shafthouse, a blacksmith shop, a general store, and housing for miners. Ford ended operations at the mine after World War II.

- January 30, 1924
- Collections - Artifact
Ford Motor Company's Imperial Iron Ore Mine, Michigamme, Michigan, 1924
Henry Ford organized the Michigan Iron, Land and Lumber Company in 1920 to administer Ford-owned natural resources in Michigan's Upper Peninsula. The Imperial Mine near Michigamme, Michigan, produced iron ore for Ford factories. The complex included a powerhouse, a shafthouse, a blacksmith shop, a general store, and housing for miners. Ford ended operations at the mine after World War II.
- Thomas Edison at the Edison Ore-Milling Company Office, Ogdensburg, New Jersey, 1895 - During the 1890s, Thomas Edison launched a New Jersey mining operation to address an iron ore shortage. He designed rock-crushing technology and an electromagnetic ore separator to extract low-grade ore from crushed boulders. The final product -- a briquette made of powdered iron ore -- didn't do well commercially, especially after high-grade ore was discovered around Lake Superior. In 1899, Edison left the industry.

- February 14, 1930
- Collections - Artifact
Thomas Edison at the Edison Ore-Milling Company Office, Ogdensburg, New Jersey, 1895
During the 1890s, Thomas Edison launched a New Jersey mining operation to address an iron ore shortage. He designed rock-crushing technology and an electromagnetic ore separator to extract low-grade ore from crushed boulders. The final product -- a briquette made of powdered iron ore -- didn't do well commercially, especially after high-grade ore was discovered around Lake Superior. In 1899, Edison left the industry.
- The "Vagabonds" Visit Ford's Imperial Mine on a Camping Trip, Michigamme, Michigan, 1923 - Between 1916 and 1924, Henry Ford, Thomas Edison, Harvey Firestone and John Burroughs -- the self-styled Vagabonds -- embarked on a series of camping excursions. These Vagabonds enjoyed retreating from the fast-paced world to explore nature and the pre-industrial countryside. In 1923, however, the Vagabonds (minus Burroughs who had died in 1921) visited Michigan's Upper Peninsula and some of Ford's business holdings.

- 1923
- Collections - Artifact
The "Vagabonds" Visit Ford's Imperial Mine on a Camping Trip, Michigamme, Michigan, 1923
Between 1916 and 1924, Henry Ford, Thomas Edison, Harvey Firestone and John Burroughs -- the self-styled Vagabonds -- embarked on a series of camping excursions. These Vagabonds enjoyed retreating from the fast-paced world to explore nature and the pre-industrial countryside. In 1923, however, the Vagabonds (minus Burroughs who had died in 1921) visited Michigan's Upper Peninsula and some of Ford's business holdings.