U.S. Geological Survey Photographic Library

ID. Burchard, E.F. 580

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Two upper levels of Colorado Yule Marble Company's quarry, showing overhang with channeling machine at back of tunnel. Marble, Gunnison County, Colorado. n.d.

Two upper levels of Colorado Yule Marble Company's quarry, showing overhang with channeling machine at back of tunnel. Marble, Gunnison County, Colorado. n.d.

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