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Photograph

Rock Quarry on Blackhawk Bluff

Date: 06 13 1913
Description: Workmen and machinery at the quarry on Blackhawk Bluff. The gravel was used in construction of the power dam.
Photograph

Interior of West Shore Coffer Dam

Date: 07 16 1912
Description: Workers posing inside the coffer dam. The narrow gauge railroad is behind them. One of the pile drivers is in the background. A bare area on the bluff in t...

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