Photograph looking down a rocky dirt roadway at two automobiles in the distance driving towards the direction of the camera. To the right side of the road is a rock cliff face, and to the left appears a downhill drop-off. Written on the negative is “E301.09-O-38” and “14.”

Photograph taken from a side angle showing a man riding a caterpillar machine in the snow, which is attached to a trailer. On the trailer is lumber, wooden crates, and other supplies. Written on the negative is “E301.09-O-361.”

Photograph showing workers laying wooden railroad ties during the construction of railroad tracks. A large piles of wood is visible on a train car, in front of which several pieces of the same wood are laid out on the ground. (Image note: negative sleeve indicates the location as “just below red rocks”).

Photograph showing temporary at construction camp in the Oak Grove area. Several tent cabins and wooden buildings can be seen in the distance in front of wooded hills. At the right side of the image, several men and a tractor are on a short wooden bridge. Written on the negative is “E301.09-O-333.”

Photograph showing a wooden sawmill building at Davis Ranch taken in the snow. Logs can be seen on the ground in front of the building. Smoke or steam is coming out of several pipes on the building, and men can be seen standing in and in front of the structure. Written on the negative is “E301.09-O-336.”

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 canvas and wooden cook house building in the snow at camp #9. The building is on a raised wooden platform. In the background is a wooded hillside, with some logged trees visible. Written on the negative is “E301.09-O-329.”

Photograph looking across an open area at a logged hillside in a densely wooded area at a future transmission line site between Three Lynx Creek and the Oak Grove powerhouse site. Snow can be seen on the ground throughout the image.

Photograph showing a men at a sawmill in a forested area at construction camp. A tractor can be seen in the background, likely being used to run a motorized saw. Other saw blades and belt drives can be seen in the image.

Photograph showing a temporary camp at Davis Ranch, with tent cabins in the snow. Each cabin includes a chimney, many of which show smoke. A worn path can be seen extending from the camera towards the camp area. In the background is a wooded hillside.

Photograph taken from a slightly high angle showing wooden structures and dirt roads in a camp area. Trees and a wooded hillside can be seen in the background.

Photograph taken from a side angle showing a raised wooden building in a clearing at “straights flat terminal.” Piles of cut wooden plants can be seen next to the building. Written on the negative is “E301.09-O-298.”

Photograph showing the northern side of the wooden North Fork trestle bridge, before completion. Behind the bridge is a loose dirt hillside with trees at the top.

Photograph taken from above showing a snow laden landscape. On the right side of the frame a cluster of buildings can be seen (headquarters camp), and on the left is the Clackamas River.

Photograph showing two Russel 15-30 steam tractors being used to saw lumber. An awning is stretched over the area, and a wooden building can be seen in the background.

Photograph from a high angle showing a building on pillars in the snow (saw mill?). A men can be seen standing at the edge of a wooden deck looking away from the camera. Written on the negative is “E301.09-O-294.”

Photograph taken from a side angle showing a wooden trestle bridge with an open gap before the installation of a steel span. Rocks and dirt can be seen in the foreground, and a hillside with bare trees behind the bridge. Written on the negative is “E301.09-O-296.”

Photograph showing two men standing next to an automobile, which is parked on a dirt hillside. To the right of the automobile is a stone railing extending down the hillside.

Photograph showing a cluster of tent cabins in an open area of snow. Each cabin has a chimney, many with smoke. Snow laden trees can be seen in the background.

Photograph showing a log cabin with a group of people standing around the porch. To the left of the building of a parked automobile next to a smaller wooden building. Forest can be seen in the background. Written on the negative is “E301.09-O-255.”

Photograph looking up towards a rounded mountain, with trees and the foreground. Written on the negative is “Lowe meadow point elev. 5113, 12/14/20.”

Photograph showing horses, Russell 15-30 steam tractors, and wooden planks in a dirt clearing. In the background is a wooded hillside. Written on the negative “E301.09-O-248.”

Photograph showing a forward facing man in a hat and overalls standing in front of a wooden cabin. In the background is a wooded hillside. Written on the negative is “E301.09-O-251.”

Photograph showing a group of forward facing people, taken next to an automobile. The automobile is facing to the side, and has open air seating. Tent cabins can be seen in the background. Written on the negative is “E301.09-O-235” and “R-12.” (Image note: significant discoloration can be seen along the right side of the negative).

Photograph looking uphill towards a log cabin. A man stands on the front porch of the structure, while another is standing downhill with a horse while looking towards the camera. Logs and stumps can be seen downhill front the cabin.

Photograph showing horse teams grading a dirt road cut. On the right side of the image is a forested hillside, and one the left is a loose dirt hillside. Written on the side of the negative is “E301.09-O-231.” (Image note: discoloration visible on the right side of the negative).

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 a small wooden cabin in snow conditions. The cabin is surrounded by trees also with a light layer of snow. Written on the negative is “Big bottom cabin, 12/15/20” and “E301.09-O-13.”