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 a barge loaded with piles of cut wood, tied to a rough wooden dock. Across the river, other buildings and wooded hills can be seen.

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 the interior of Station B in Oregon City. On the main floor are several large machines (generators?) with other electrical infrastructure visible near the ceiling. A small desk and chair can be seen.

Photograph, taken from across the river, of the Cazadero powerhouse/Station G. Part of the roof is incomplete, and three pipes run from the building up the hill. A stairway next to the pipes goes from the building to the top of the hill.

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 Cazadero Dam during a flood, before the placement of a new apron. Fast flowing water spills over the dam.

Photograph showing workers during re-decking of the Cazadero Dam. Four men stand at the top of the structure, while one sits on a ladder looking upward. Another part of the wooden dam is visible in the background.

Photograph showing in-progress re-decking of the spillway at the Cazadero Dam/Station G. Men are visible at the top and bottom of the structure, and water and wood debris can be seen below the spillway.

Photograph taken from above Cazadero Dam/Station G, looking downriver towards the spillway and wooden dam structure. Behind, a dirt hillside and trees can be seen.

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 Faraday flume for generating Station G. Below the flume structure, the Clackamas River can be seen, with several small waterfalls flowing off the hillside above.

Photograph, looking towards the powerhouse structure at the Oak Grove Dam. Large pipes can be seen behind the building, extending up a large hill towards a tank at the top. To the left of the stone building, a retaining wall and metal frame structure can be seen. Written on the negative is "49-289."

Photograph showing a scenic view of Mount Hood from the south side of Timothy Lake looking north. Trees can be seen in front of the camera, with newly excavated dirt in front. In the distance, low water can be seen in the lake, likely during water release.

Photograph showing two young men in heavy jackets standing in an open dirt area with trees in the background. The youth on the right is bent over and is using a tool, while the youth on the left holds a bag looks on.

Photograph taken from a high angle and looking downward at a large stream of water being released from a pipe attached to a small building. Just below the camera, a man faces towards the side and points at the water. Behind the building is a cutaway hillside with dirt and rocks. Written on the negative is "56-254."

Photograph looking up a snowy hill, showing two women holding skis in front of Mt. Hood. A stand of trees can be seen in the middle and right sides of the frame. Written on the negative "57-320."

Photograph taken from a high angle showing snow covered trees, hills, and Mt. Jefferson in the distance. On the left side of the frame, two linemen can be seen at the top of a utility pole, with other poles visible throughout the image. Written on the negative is "57-320." (Image note: see related image PGE 57-320-9).

Photograph looking downhill, showing two men in hardhats and a woman standing in the snow. In the distance, the top of the Timberline Lodge is visible, including a decorative weather vane with the Timberline Lodge logo. Next to the three individuals is a ski lift with a wooden stairway and small building. Written on the negative is "57-320."

Photograph looking downhill, showing two linemen at the top of a utility pole with Mt. Jefferson visible in the distance. Snow can be seen on the ground, trees, and mountains throughout the frame. A utility pole and electric line are at the right side of the frame. Likely taken near Timberline Lodge. Written on the negative is "57-320." (Image note: see related image PGE 57-320-15).

Photograph showing a group of four adolescents in a forested area at Promontory Park. One of the boys is standing on top of a large rock, while the tree others stand at ground level and face towards the first. Ferns and tree can be seen throughout the image, in addition to other large rocks.

Photograph showing a spillway structure during the 1964 Christmas flood (taken December of 1964). Water can be seen rapidly spilling down the structure, with a small building visible at the far side of the river. High water levels can be seen upriver, in addition to forested hillsides and trees.

Photograph taken during a flood in February of 1890, showing an old Station A building in Oregon City surrounded by moving water. In the foreground of the frame a wooden waterwheel is visible. An older paper frame can be seen around the edge of the photograph.

Photograph looking downhill at the Clackamas River, at a potential future dam site for the River Mill Dam. Several cut trees can be seen on the closest hillside, and a rocky ledge is visible across the river. Written on the negative is “Dec 22, ‘09, PES 2013.”

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 left bank of the Clackamas River at the river Mill Dam, taken from the “island.” Near the center of the frame, two men in long jackets stand next to a surveying station. To the left, another man in a hat and jacket looks at the camera. In the distance, men can be seen working on the dam spillway. Written on the negative is “#70M. 11-28-10.”

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