This is an early beta version that’s still a work in progress. We hope to develop and refine the contents going forward. In the meantime, we’re making it fully available to the public as-is. Started by the Jefferson County Historical Commission in the 1990s, it was transferred to the Golden History Museum-City of Golden in 2020.

F.M.& D. Copper Mine


Address1 1/2 mi. W. of Idledale.
QuadS30, T4S, R70W
SectionEvergreen, 1965 (1994)
Elevation7800
Source"City and Mountain Views," Interview, Stanley Thiede, Dec. 1996; Lomond, "Mt. Vernon Canyon Past to Present."
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SeealsoFerris McCaffrey Dillon Copper Mine
Initialdate1998-08-15 00:00:00-06
PersonCAL
Latestdate2012-11-28 00:00:00-07
Person2REL
HistoryThe malachite vein containing copper was first discovered in 1866 and was periodically worked until 1917. Piles of timber, tailings, and a huge rusted, metal boiler remain at the site. Remnants of several crude buildings are also visible. The boiler provided energy to operate a crusher to produce sludge that was transported to smelters in Golden. Resident Stanley Thiede says his father worked at the F.M.& D. in 1904 and again in 1917.
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