Title: Calumet & Hecla - Wolverine Tube Division
Photographer: Unknown
Subject Headings: Metal Trade - Copper Industry and Trade, Miners - Copper Miners,
Condition: Good
Description: Image of timber bracing in the stopes. As the ore body is removed the overhanging rock must be supported to prevent a cave in. This is done by means of timber bracings. After ore has been brought to the surface and processed through a concentrating plant to remove the non-metallics, it is fire-refined and cast into ingot form, cake form, or billet form. [Two miners inspect the bracing. Name and location of mine unknown.]
Source of Description: Pictorial Description [Cataloger]
Institution: Michigan Technological University Archives and Copper Country Historical Collections
Donor: Universal Oil Products
Date of Photo: undated
Medium: still image
Color: black and white
Size: 20.2 cm x 24.9 cm
Polarity: Positive
Image No: MS003-003-002-03
Collection Name: Calumet and Hecla Photograph Collection
Terms of Use: Rights to reproduce and distribute this image may be restricted. Contact the Michigan Technological University Archives and Copper Country Historical Collections for further information.
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