Rocky Mountain Mammoth Mine
Boulder County
The Rocky Mountain Mammoth Mine is significant for its association with the mining industry in the mountains of Boulder County. As a telluride gold ore producing mine, the Rocky Mountain Mammoth contributed to a major mining revival experienced in the Magnolia Mining district and elsewhere in Boulder County in the late 1890s and early 1900s.
Rocky Mountain Mammoth Mine
It is an excellent example of a late-nineteenth-century small shaft mine. The property meets the registration requirements of one property type delineated in the Multiple Property Documentation Form (MPDF): The Mining Industry in Colorado and Amendment to Metal Mining and Tourist Era Resources of Boulder County.