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Filter: Categories of Wisconsin Historical Images
Filter: Subject of Dams
Filter: Subject of tunnels
| Date: | 07 01 1912 |
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| Description: | A view through the runway (tunnel) cast into the concrete structure of the power dam at Prairie du Sac. |
| Date: | 03 1932 |
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| Description: | Two International trucks exit a tunnel on a dirt road leading through a canyon during the construction of the Hoover Dam. Two men stand on the top of a squ... |
| Date: | 1932 |
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| Description: | Elevated view looking north toward the future site of the Hoover Dam. |
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