- Main office at the power dam in 1912.
- Men pouring concrete at the dam project, circa 1911.
- Interior view of the Allis-Chalmers generators installed in the Prairie du Sac power house in 1914.
- Interior view of the Allis-Chalmers generators installed in the Prairie du Sac power house in 1914. 2
- Elevated view of a man standing near the governors and generators inside the Prairie du Sac power house in 1915.
- Dining room at the Pwer dam construction 1913.
- A view through the runway(tunnel) cast into the concrete structure of the Prairie du Sac power house dam in 1912.
- An interior view of the power house at the Prairie du Sac power house in 1914.
- Sections of turbines inside the power house at the Prairie du Sac dam in 1914.
- Praire du Sac hydro-electric power house project looking through the lock walls in 1913.
- Two 150 hourse-power boilers 1918.
- View from the west bank of the Wisconsin River showing progress on the power dam 1913.
- 1915
- 1914
- 1914 s