Photo: Mineral Range RR Gondola 153 (Undated)

Photo from Michigan Technological University:

https://cchi.mtu.edu/copper-country-image-detail?duid=88aa03aa-4bc8-409c-a7f1-6d9ee6e04005&width=1242&height=732&nid=21977

Load of “mass copper”, an industry term for native copper occurring in large masses.

Bob Chaparro

Hemet, CA