Photograph showing a person standing on the left bank of an empty, dirt irrigation canal in a forested area. The person looks at the camera. There is a large tree stump on the right bank of the canal.

Photograph showing a person standing in an empty, dirt irrigation canal in a forested area. The person faces away from the camera.

Photograph showing water flowing in a dirt irrigation canal through a forested area. Three men on the left bank of the canal look down at the water. A felled tree lies in the foreground on the right bank of the canal.

Photograph showing water flowing in a dirt irrigation canal through a forested area.

A view of a farm in the Silverton, Oregon area with fields of hops growing on trellises. A farmhouse and multiple outbuildings can be seen. Two of the buildings have what appears to be a raised flume running between them. One of the buildings has the number "1904" on it.

Water runs out of a metal flume into an irrigation ditch at a mint farm in Silverton, Oregon.

A raised wooden flume runs across a field at a mint farm in Silverton, Oregon. Water flows from the flume into an irrigation ditch.

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

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 looking towards flume and railway tracks at Cazadero Dam/ Station G. A man stands on the railway tracks in the distance, and a dirt hillside drops down between the tracks and the flume.

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 damage to a hillside, fence, and canal. At the left side of the frame is a rapidly flowing river (likely the Clackamas River), with a deteriorated hillside on its banks.

Photograph showing damage to a fenced area due to the 1964 Christmas Flood (likely in the Clackamas River area). An man-made canal can be seen on the right side of the frame, with damaged fencing running along the river to the left. Much of the fencing appears to have fallen downhill towards the rapidly moving river. In the foreground, two men in long jackets face away from the camera. (Image note: see related image PGE 64-606-8.2).

Photograph showing a heavily damaged wooden flume structure at an unidentified location (likely on the Clackamas River). Large stones can be seen in the deteriorated hillside under the flume, due to a landslide. Other wood can be seen in the foreground, likely a continuation of the damaged flume.

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

Photograph looking downward at a wooden flume and railway track built on a hillside. The wooden structure continues into the distance, where more tree covered hillsides can be seen. Written on the negative is “0-336.”

Photograph showing exterior of wooden and steel structure of flume at Bull Run.

Photograph showing interior of wooden and steel structure of flume at Bull Run.

Photograph looking downward at a wooden flume and railway track built on a hillside. The wooden structure continues into the distance, where more tree covered hillsides can be seen. In the bottom left corner of the frame, a man is looking at the camera and leaning against a cushioned seat, likely on a railway car. Written on the negative is “0-337, July-3-1912, Bull Run Flume.”

Photograph and structural plan of Bull Run flume on Little Sandy Dam. Bottom photograph shows flume with hillside and trees.

Photograph showing a wooden flume bridge crossing the Little Sandy River near the Little Sandy Dam. Five men in work wear stand on pieces of wood next to the flume while looking at the camera. Water can be seen under the bridge in the background. Written on the negative is “E301-03396.”

Photograph showing construction at the Big Sandy Dam (likely the Marmot Dam). Workers can be seen inside of a long wooden structure (flume?) while one can be seen at the top. On the right side of the frame is a loose hillside. Written on the image is B.S-35.”

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).

Rowboats tied to the back of Lily E. White's houseboat, the Raysark. Likely taken on the the LIttle White Salmon River. A flume or train trestle is visible in the distance of the photograph. Caption from negative sleeve reads, "Our Disappearance for L.W.S., R-13, LW-13."