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 barge and small boat on the Willamette River in Portland. In the distance, the Hawthorne bridge can be seen. Written on the back of the barge is "Portland General Electric Co. Barge no. 14, Portland Ore." To the right of the barge is wooden dock structure. Written on the negative is "49-298."

Photograph showing workers on a barge standing in front of two large spools of cable. The cable can be seen extending into the water while the workers look on. In the background is a crane and a building on the barge with "Willamette Tug & Barge Co" written on it. Likely the Willamette River. (Image note: unidentified location, possibly Oregon City).

Photograph taken from a high side angle, showing a low barge with a crane, large spools of cable, and people. On the Right side of the frame, a tug boat can be seen behind the barge. On a sign next to the cable is written "Cable Crossing 13,000 Volts PGE Co" and "13,000 Volt Submarine Cable Okonite." Also visible is a "Willamette Tug & Barge Co" sign. In the background are forested hills, with some buildings, with an industrial area visible near the shore. Visible body of water is likely the Willamette River. Written on the negative is "50-645." (Image note: unidentified location, possibly Oregon City).

Photograph looking westward across a scenic open valley at Cove Palisades State Park towards Mount Jefferson and Ollalie Butte. The Deschutes River can be seen at the bottom of the valley, with hills and cliffs extending into the distance.

Photograph looking westward across a scenic open valley at Cove Palisades State Park towards Mount Jefferson and Ollalie Butte. A river can be seen at the bottom of the valley, possible the Deschutes and Crooked Rivers coming together near the Island.

Photograph looking downward and across a canyon, with Mount Jefferson visible in the distance. At the base of the canyon is a dirt road and river (Deschutes River or Crooked River).

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 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 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 of river showing tunnel entrance and wooden structures along water edge. Wooded hillsides are seen at both sides of the river. Two men stand at the tunnel entrance.

Photograph of Bull Run flume showing a motorcar and man in a hat and suit.

Photograph showing men standing on a wooden platform looking at the camera. On top of the platform is a makeshift ladder leading to a pulley and rope. Written on the negative is “E301.09-O-239” and “R-8.”

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 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 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 showing the South Fork of the Clackamas river, looking towards a large rocky cliff-face. A man can be seen walking on a log in the river, while three others sit on a rock extending into the water. Written on the negative is “E301.09-O-36.”

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 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.

Manuscript discussing the topics of William Finley's lecture, including the Lower Klamath and Malheur Wildlife Refuges, preserving the Columbia River, and the effects of agriculture.

Articles discussing the William and Irene Finley's trip to Arizona and the formation of the "Willamette Anti-Pollution Association."

Newspaper clippings discussing honorary degrees awarded at Oregon State College commencement ceremony. Additional newspaper clippings discuss Finley's plans to photograph brown bears in Alaska and a Willamette River conservation group meeting.

Aerial view of the Willamette River flowing through Portland, Oregon. Four bridges are visible. From left to right, they are the Steel Bridge, the Burnside Bridge, the Morrison Bridge (under construction) and the Hawthorne Bridge. A wing of the plane is also visible on the lower right (negative 3 of 9).

Aerial view of the atomic submarine Nautilus as it travels on the Columbia River near Clatskanie, Oregon. Several people stand on the deck of the submarine, and there is a smaller boat behind it. Waves fan out from both sides of the submarine (negative 3 of 8).

View of the construction of the bascule piers of the Morrison Bridge in Portland, Oregon. On the right is a large bascule pier under construction. In the center of the photograph, another bascule pier is under construction in the middle of the river. An unfinished ramp of the Morrison Bridge is visible in the distance. Taken from the east side of the Willamette River, looking west across the river toward downtown Portland, visible in the background (negative 1 of 3).