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 showing an oil tank during construction at Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue). Near the top of the frame, several men look at the camera.

Photograph showing four men posing with boilers at Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue). Two men stand at the front of the boilers while two others peak out near the top.

Photograph showing generator units under construction at Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue). Behind the units, brick walls can be seen, with a ladder installed.

Photograph showing engines at Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue). A man in overalls stands on a platform on the left side of the frame.

Photograph showing the interior of Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue), taken from a high angle. Several large pieces of machinery can be seen throughout the run, as well as electric lights.

Photograph showing an engine exciter at Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue). Two men in overalls stand to the left of the machine, looking at the camera. The man on the right is holding a small mechanical wheel.

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 showing people and cars in front of a fenced substation. Multiple men in suits and hats stand on the sidewalk in front of the metal fence, behind which several large pieces of electrical equipment can be seen. On the negative is written "49-102."

Photograph, taken at night, showing a group of suited men standing next to a paved street while looking towards the left. Wooden buildings can be seen on the left and right sides of the frame. Most likely in Portland. On the negative is written "49-106."

Photograph taken from a side angle of a parade float, made of individual flowers, with "Little Toot" written on the side. The float is in the shape of a ship and is parked on the street next to a wooden house. On the negative is written "49-109." (Image note: see related images PGE 49-111 and PGE 49-120).

Photograph taken at night showing a baseball field with players. Two large electric lights can be seen over the field, and spectators are visible to the sides. On the negative is written "49-112." (Image note: see likely related images PGE 49-104, PGE 49-105 and PGE 49-130).

Photograph showing the spillway on an unidentified dam, taken from a side angle and looking across the river. Trees can be seen along the water. On the negative is written "49-116." (Image note: see related image PGE 49-115).

Photograph showing two groups of baseball players, with another group of men standing in between. One man stands to the front of the group while holding a wired microphone, and another man is wearing religious garb. The photograph is taken at night, and unlit field lights can be seen in the frame. Written on the negative is "49-130." (Image note: see likely related images PGE 49-104, PGE 49-105 and PGE 49-112).

Photograph showing flowing waterfalls on an unidentified river (possibly the Columbia River?). In the background, more rocky cliffs can be seen, as well as a road and electrical lines. Written on the side of the negative is "49-161." (Image note: see related images PGE 49-154, PGE 49-170, PGE 49-172, PGE 49-174, PGE 49-175, PGE 49-178, PGE 49-184, PGE 49-185).

Photograph showing a short wooden dam structure on an unidentified river (possibly the Columbia River?). Below the structure is an area of natural rock formations and logs, and wooded hills can be seen above the shore in the distance. Written on the negative is "49-172." (Image note: see related images PGE 49-154, PGE 49-161, 49-170, PGE 49-174, PGE 49-175, PGE 49-178, PGE 49-184, PGE 49-185).

Photograph showing a man in a diving helmet, partially submerged next to another man who is standing on a wooden board. The diving helmet is metal and has several openings. Written on the negative is "49-205. "(Image note: see likely related images PGE 49-154, PGE 49-161, PGE 49-170, PGE 49-172, PGE 49-174, PGE 49-175, PGE 49-178, PGE 49-184).