Date: | 05 13 1914 |
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Description: | A view upstream through the lock at the Prairie du Sac dam. Workmen are guiding a barge through the lock as a man and woman are watching from steps in the ... |
Date: | 10 11 1914 |
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Description: | Elevated view looking east across the power house, lock, and uncompleted portion of the dam. The concrete plant is seen on the far bank. The rising water o... |
Date: | 1873 |
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Description: | Engraved image of a lock and dam at Sault St. Marie. Two men are operating the sluice as ships are waiting on the opposite side of the lock. Another man is... |
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