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Encyclopedia Dubuque

www.encyclopediadubuque.org

"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
Marshall Cohen—researcher and producer, CNN

Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.




ROCK BONE: Revision history

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5 July 2021

14 March 2010

  • curprev 02:0702:07, 14 March 2010Randylyon talk contribs 350 bytes +350 New page: ROCK BONE. "Rock bone" was a term used by miners in Dubuque for a massive vein of smithsonite. Smithsonite, named for James Smithson, the founder of the Smithsonian Institution, has been a...