Photograph of second unit powerhouse at Oak Grove taken from above the Clackamas River. In the distance are several small buildings and a dirt road on a hillside. Forested hills are visible in the background.

Photograph from Oak Grove project showing construction of unit plant and penstock. A brick building can be seen at the base of a dirt hill, with a small round building visible at the top. The Clackamas River runs along side the building and supporting wall.

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 upstream, below proposed upper dam site at Cazadero Dam/Station G. A railroad track and flume can be seen running into the distance around a hillside, and two possible construction vehicles are visible. The river can be seen on the left side of the frame.

Photograph showing the Oak Grove powerhouse during construction. The Oak Grove Fork of the Clackamas River can be seen running alongside the building area, while a large pipe and possible flume extend uphill from the structure. A wooden trestle is also visible on the hillside above the building.

Photograph taken from a high angle looking downward at the Oak Grove powerhouse during construction. The Oak Grove Fork of the Clackamas River can be seen next to the building, with the Three Lynx camp visible on a hillside in the distance.

Photograph showing metal and cement building framework, taken from across the Oak Grove Fork of the Clackamas River. Behind the structure is a dirt hill, with a wooden bridge and dirt road visible near the top of the frame.

Photograph taken from a high angle and looking downwards at construction of the Oak Grove powerhouse, with the Clackamas River visible at the left of the frame. Metal and wood framework can be seen throughout the image, with numerous workers and lumber piles also visible. A railroad track and dirt road cut through the hillside and extend into the distance.

Photograph looking upstream and downward at the Oak Grove powerhouse during construction. Wood and metal framework, and men working, can be seen throughout the site, with piles of dirt and lumber in the background. On the left side of the image is a metal bucket attached to a hook and pulley. In the background is the Oak Grove Fork of the Clackamas River.

Photograph showing small wooden building with piles of cut lumber in front of a steep logged hillside. On the right side of the frame, the Clackamas River, or Oak Grove Fork can be seen, and snow is on the ground throughout the image. Written on the negative is “E301.09-O-369.”

Photograph looking downward the Clackamas River in the narrows area near Three Lynx. Trees and rocks line the river on both sides, and wooded hills can be seen in the background. Written on the negative is “E301.09-O-318.”

Photograph showing a flowing Clackamas River, looking upstream towards a small group of buildings on the far shore. Written on the negative is “E301.09-O-352.” (Image note: native sleeve indicates image taken from lower end of roaring river bluff).

Photograph showing the Clackamas River (Oak Grove fork?) looking downstream from the powerhouse site for the Oak Grove dam. Snow can be seen on the ground and trees throughout the image. Written on the negative is “E301.09-O-309.”

Photograph showing a man in a cart attached to a cable crossing the Clackamas River at Three Lynx. He is facing forward while looking slighty to the side, with his hands in his lap. Trees and rocks can be seen on the far shore. Written on the negative is “E301.09-O-178.”

Photograph looking upstream on the Clackamas River, past the new powerhouse site, taken from a point on right bank at bend. A steep river bank and trees are visible throughout the image. Written on the negative is “E301.09-O-148” and “R22.”

Photograph showing the Clackamas River flowing at the base of a rocky cliff. Disturbed dirt and debris can be seen on the left side of the image, falling towards the water. Written on the negative is “E301.09-O-136” and “Je-2-22.”

Photograph showing an overhanging rocky cliff with a waterfall next to a flowing river (likely the Clackamas River). In the distance is a forested hillside visible above the river. Written on the negative is “Overhanging cliff near Roaring River Ranger Station 12/17/20” and “E301.09-O-16.”

Photograph looking across a dirt slide above the Clackamas River. A man can be seen standing on the hillside in the distance. The river is visible on the left side of the frame. Written on the negative is “Earth and loose rock slide below south fork, 12/17/20” and “E301.09-O-15.”

Photograph showing a man standing next to a wooden “clockhouse” building with snow. He is wearing winter clothing, a hat, and is holding a rifle. Downhill from the building is the Clackamas river. Written on the negative is “Clockhouse at Big Bottom 12/15/20.” (Image note: see related image PGE 16-37.”

Photograph taken from across the Clackamas River showing two small wooden “clockhouse” buildings. Snow can be seen throughout the image, one the ground and trees. Written on the negative is “new and old clockhouses at Big Bottom 12/15/20.” (Image note: see related image PGE 16-35)

Photograph showing three men on a steep hillside above the Clackamas River(?). One man sits towards the front of the group, while the other two behind are standing and looking towards the camera. At the base of the cliff is flowing water and logs. Written on the negative is “Lower Damsite at Intake, 5-4-20.”

Photograph looking across the Clackamas River (?) at a dam site. Logs and flowing water are visible at the base of the rocky cliff. Written on the negative is “Upper Damsite at Intake, 5-4-20.”

Photograph looking across the Clackamas River at camp #3, taken from slightly uphill. Several small wooden structures can be seen above the river bank, next to a large pile of logs. In the background is a wooded hill. Written on the negative is “E301.09-O-108” and “R-2.”

Photograph looking up the Clackamas River, taken during a flood. On the right side, a cut road can be seen crossing the hillside, with several small flowing waterfalls. Written on the negative is “E301.09-O-46” and “19.”

Photograph taken from above showing the Clackamas River and forested mountains.

Photograph of the Cazadero Dam taken in front of the spillway. Water flows over the ledge into a pool at the base, and another stream of water can be seen spilling down on the right side of the frame. The stacked wooden dam structure is visible to the left of the main spillway.

Photograph showing a suspension bridge over the Clackamas River in near the River Mill dam area. The bridge crosses between two tall cliff faces, beyond which the river can be seen around. Snow is on the ground throughout the image. Written on the negative is “Feb 3, ‘10, PES 2014.”

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.”