Photograph showing a short wooden dam structure on an unidentified river (possibly the Columbia River). Several men can be seen on top of the structure, on top of which water is being diverted from a pipe. Rock cliffs, wooded hills, and buildings can be seen in this distance. Written on the negative is "49-178." (Image note: see likely related images PGE 49-154, PGE 49-161, PGE 49-170, PGE 49-172, PGE 49-174, PGE 49-175, PGE 49-184, PGE 49-185).

Photograph showing flowing waterfalls on an unidentified river (possibly the Columbia River?). Behind the waterfalls, possible dam infrastructure can be seen. In the background, more rocky cliffs can be seen, as well as a road and electrical lines. Written on the side of the negative is "49-170." (Image note: see related images PGE 49-154, PGE 49-161, PGE 49-172, PGE 49-174, PGE 49-175, PGE 49-178, PGE 49-184, PGE 49-185).

Photograph showing flowing waterfalls on an unidentified river (possibly the Columbia River?). In the background, more rocky cliffs can be seen, as well as a road and electrical lines. Written on the side of the negative is "49-161." (Image note: see related images PGE 49-154, PGE 49-170, PGE 49-172, PGE 49-174, PGE 49-175, PGE 49-178, PGE 49-184, PGE 49-185).