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4 C Mine - Colorado - 1ef7a873e0b4c48ab96f9f350dd2a6f9
Summary
Exterior view of the portal of the 4 C Mine in Colorado.
Tags
Date
1900 - 1928
Source
University of Colorado Boulder Libraries
Copyright info
Public Domain
Summary
Exterior view of the portal of the 4 C Mine in Colorado.
Tags
Date
Source
Copyright info
