Image of an abandoned Volcanic Mining Company gold-processing mill built on the banks of the Medano Creek in 1929. The mill used amalgamation to extract flour gold from the sand. This process required the use of mercury, vats of cyanide, or other dangerous chemicals to slowly leach out the gold.
NPS Archive Photo
Milestone Memories of the 1920s:
The P.E.O. step-up their letter writting campaign to have the Great Sand Dunes federally protected.
1929- the Volcanic Mining Company built a gold mining mill on the banks of the Medano Creek.
The remains of a 1920s Gold Dredge along the Medano Creek.
NPS Archives Photo
Last updated: May 1, 2025
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Contact Info
Mailing Address:
Visitor Center
11999 State Highway 150
Mosca,
CO
81146
Phone:
(719) 378-6395
General Park and Preserve information: (719) 378-6395
Emergencies (Police, Fire, Medical): Dial 911.
Non-emergencies (Police, Fire, Medical): call (719) 589-5807