Photograph of a train crossing the Sandy River bridge at Dodge Park, Bull Run. A total of eight passenger train cars can be seen crossing the trestle bridge, under which river rocks and water can be seen.

Photograph of a construction at the Cazadero Dam during construction. Wooden structure is visible with water from the Clackamas River flowing through the bottom, towards the camera.

Photograph showing construction of Cazadero Dam. Several workers can be seen in the distance at the top of a stacked wooden dam structure, with a dirt hillside above. The Clackamas River is visible at the bottom of the dam, and trees (possibly burnt) can be seen at the top of the hill.

Photograph showing construction progress of the powerhouse at Cazadero Dam/Station G, taken from a high angle looking downhill. The foundation can be seen on the near side of the river, with multiple men working. Across the river, a dirt hillside with fallen trees and stumps can be seen.

Photograph showing construction at Cazadero Dam. The Clackamas River can be seen flowing through the bottom of the dam, and trees are visible on the hillside in the distance. (Image note: similar to PGE7-6, but appears to show further stage of completion).

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

Photograph showing construction at Cazadero Dam. The Clackamas River can be seen flowing through the bottom of the dam, and trees are visible on the hillside in the distance.

Photograph showing the lower dam site at Cazadero Dam/Station G, looking downriver. Forested hills can be seen in the distance.

Photograph showing construction at Cazadero Dam. The Clackamas River can be seen flowing on the right side. Ice formations are on the hillside to the left, and snow and frost can be seen on the wooden dam structure.

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 showing completed re-decking on the spillway at Cazadero Dam/Station G. Wood debris can be seen in the water below the spillway, and leftover ropes, ladders and tools are visible on the lower walkway.

Photograph showing the Cazadero Dam flume running into the distance. Trees (possible burned) can be seen on both sides of the (excavated?) canal.

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 a side angle, showing the flume at the Cazadero Dam/Station G. Below the wooden flume is a dirt hillside with rocks, and a long wooden building can be seen in the background on the right side of the frame.

Photograph showing the fishway Cazadero Dam/Station G. A man sits in a boat looking at the camera, with the wooden dam structure is visible behind. Part of the flume can be seen along the right side of the frame.

Photograph taken from across the water, showing the employee cottages at Cazadero Dam/Station G. Building can be seen at the top of the hill above the river, with several small wooden structures in front of three long buildings. A railroad car is parked on the left side of the frame.

Photograph taken from a side angle, looking across a suspension bridge at Cazadero Dam/Station G. The bridge leads to steps, which go to the top of the hill across the water. Several buildings and transmission poles can be seen at the top of the hill. On the left side of the frame, the edge of a brick building can be seen.

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 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 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 taken during a flood at Cazadero Dam/Station G. A large amount of water flows down the spillway on the left side of the image, and the flume is visible across the water.

Photograph showing the flume at Cazadero Dam/Station G during a flood. Rapidly moving water is visible in the Clackamas River below the flume, and a wooden building can be seen on a hillside above.

Photograph showing a partially completed suspension bridge over the Clackamas river near the River Mill Dam site. Cliffs and trees can be seen throughout the image. Written on the negative is “Dec 22, ‘09 – PES 2009.”

Photograph showing a bridge over the Clackamas River, taken from river level looking upward. In the background, a wooden suspension bridge can be seen across the cliffs behind the larger front bridge. Written on the negative is “Dec 22, ‘09 PRD 2007.”

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 showing construction at the Big Sandy Dam (likely the Marmot Dam). Workers can be seen on the wooden structure, with flowing water at the right side of the image. In the background are several small wooden structures. Written on the image is “B.S. 32.”