Photograph taken from the side showing water cascading over the River Mill Dam. Across the water, the powerhouse for Station M can be seen.

Photograph of the River Mill Dam powerhouse taken from a high angle, looking downwards. In the background, the dam structure and transmission lines can be seen.

Photograph taken from a bridge and looking downriver at the River Mill Dam and powerhouse. The Dam structure can be seen on the left, with the powerhouse building on the right.

Photograph from the interior of Station M at the River Mill Dam showing governor #3 during a test. On the device is written “The Lombard Governor Co.”

Photograph of the interior of the River Mill Dam (Station M) showing heavy head gate machinery. Several rows of large gears are visible, and large windows can be seen on all walls.

Photograph of the River Mill Dam, showing recently cut trees and possibly dam structure under construction. Water can be seen at the front of the frame.

Photograph looking across the Clackamas River, of a potential dam site for the future River Mill Dam. A rocky cliff-face can be seen across the water, as well as tree at the top of the frame. Written on the negative is “Oct 22, ‘09, PES #2004.”

Photograph of the interior of the River Mill Dam (Station M) showing generator machinery. Written on the side of the front unit is “General Electric Company.” Three people can be seen in the photo, two of which are looking at the camera.

Photograph taken from a side angle of the River Mill Dam and powerhouse, showing exterior of building and view of dam structure. Water from the Clackamas River can be seen moving over the dam, and trees and transmission lines are visible in the distance.

Photograph of River Mill Dam looking upstream. The powerhouse can be seen to the right of the large dam structure, with a smaller wooden building to the front. In the background, a distant railroad bridge can be seen.

Photograph showing the construction of the spillway at the River Mill Dam. At the left side of the frame, a portion of a wooden suspension bridge can be seen. Behind, a railroad bridge spans the space between two cliffs, beyond which wooden buildings are visible. Written on the negative is “#84M. 1-28-11.”

An aerial photograph of the Rogue River, showing several docks, and what is likely the removed Savage Rapids Dam near Grants Pass (negative 1 of 10).

Photograph of the Big Sandy Dam site (likely the Marmot Dam), showing a wooden flume with suited individuals standing in the foreground. At the top of the hillside, a wooden building and platform can be seen. Written on the image is #34, B.S dam site, looking down stream, Oct 14, 1911.” (Image note: glass negative broken at lower right corner).

Photograph showing water cascading down Willamette Falls in Oregon City. Industrial buildings can be seen just above the falls, with a rocky cliff and houses visible in the background. Above the waterfall is a spillway. Written one of the of large industrial buildings is "Publishers Paper Co."

Photograph looking across the water showing several large industrial buildings on the shore. On the left side is a pulp and paper company, and a white building with a large smokestack can be seen in the center of the frame. Along the shore are stacks of wood (possibly crates).

Photograph showing a wooden building and dock for a paper and pulp company. Shallow water can be seen throwing through a trench towards the left side of the frame.

Photograph showing a man working with a truck and hoisting machine on top of a wooden dam structure. The man stands next to the truck. Water is visible at the base of wooden stucture, which appears to be filled with rocks.

Photograph taken from a high angle showing several men working with a truck and hoisting machine next to flowing water of the Willamette River. On the left side of the image, two men stand on a dock platform while one holds a wooden pole.

Photograph showing a dam at Willamette Falls in Oregon City. In the center of the frame is Willamette Falls, with water cascading down. In the distance across the water, buildings can be seen along a hillside.

Photograph taken at Willamette Falls in Oregon city showing men working on a wooden dam structure. Industrial buildings and a smokestack can be seen just beyond the dam structure, and wooded hills are in the distance. A large white house is visible at the top of the hill on the left side of the frame.

Photograph showing groups of men working on a dam in Oregon. Two men are standing in the shallow water, while another two are in a rowboat to the right. Another four men stand on top of the wooden structure to the left next to a hoisting machine. In the background, multiple smokestacks can be seen coming from a large industrial building.

Photograph showing a dam at Willamette Falls in Oregon City. In the center of the frame is Willamette Falls, with water cascading down. In the distance across the water, buildings can be seen along a hillside.

Photograph showing a dam at Willamette Falls in Oregon City. In the center of the frame, water cascades through an opening between a building and dam structure. Numerous other buildings and utility poles can be seen throughout the image.

Photograph showing a dam at Willamette Falls in Oregon City. Water flows past a rough wooden wall in the center of the frame. On the left a power plant building can be seen, with out structures further up the hill in the background.

Photograph of the Cazadero flume at generating Station G, showing air compressor and pipelines weld, in placing concrete for new bents. Several cars can be seen on a railroad track, and the flume can be seen running along the right side of the frame.

Photograph of the Cazadero flume at generating Station G, showing a compressed air concrete mixer on a train car. Two men stand at either side of the mixer while looking at the camera.

Photograph showing the exterior of the Cazadero power station taken from across the Clackamas River. Four large pipes run uphill from the building. Previously burnt trees can be seen in the background.

Photograph showing the interior of the Cazadero power station at Station G, with the first three generating units. Large rounded windows can be seen on the right side of the high peaked room, and on the side of the generators is written “Allis Chalmers Company.”