Negative of a photographic postcard showing the Umatilla River in Umatilla, Oregon. Two bridges cross the river, a highway bridge in the foreground and a railroad bridge behind it. Several wires hang over the river. Taken close to the confluence of the Umatilla River and the Columbia River. Handwriting on negative reads, "Umatilla River - Umatilla, Oregon. Christian 11-917."

Negative of a photographic postcard showing the confluence of the Umatilla River and the Columbia River. Two bridges cross the Umatilla River, a highway bridge and a railroad bridge. Handwriting on negative reads, "Umatilla Riv. and Columbia Riv. - Umatilla, Ore. Christian 11-920." The top right of the image has been cut off.

A view of the McNary Dam on the Columbia River. An area of rocks is at the left side of the frame, in front of the cement dam structure. A raised control house can be seen at the top of the dam. Engineers at the dam were attempting to trap and save blueback salmon to strengthen the 1951 run. Photographs from this series were published in the Oregon Journal on Sunday, July 15, 1951 (negative 5 of 26).

A man stands on top of a structure at the McNary Dam, on a wooden walkway. The Columbia River can be seen next to the dam, in front of basalt cliffs in the distance. Above the dam is a metal crane. Engineers at the dam were attempting to trap and save blueback salmon to strengthen the 1951 run. Photographs from this series were published in the Oregon Journal on Sunday, July 15, 1951 (negative 4 of 26).

Choppy water at the McNary Dam on the Columbia River. Water can be seen flowing through the cement structures into the pool below. Engineers at the dam were attempting to trap and save blueback salmon to strengthen the 1951 run. Photographs from this series were published in the Oregon Journal on Sunday, July 15, 1951 (negative 10 of 26).

Construction at the McNary Dam on the Columbia River. Water can be seen at the base of the spillway bays, with the dam structure in various stages of construction with wood and cement. Photographs from this series were published in the Oregon Journal on Sunday, April 30, 1950 (negative 5 of 42).

A partially completed cofferdam at the McNary Dam on the Columbia River. Water can be seen flowing through the wooden structures, which appear to be filled with pieces of stone. This photograph was published in the Oregon Journal on Sunday, April 30, 1950 (negative 6 of 42).

An overhead view of construction at the McNary Dam on the Columbia River. The structure is built of wood, rebar, and cement, with the water visible in the distance. Photographs from this series were published in the Oregon Journal on Sunday, April 30, 1950 (negative 23 of 42).

A ferry on the Columbia River, carrying workers during the construction of the McNary Dam. Automobiles and people can be seen on the ferry, which appears to be docked on the river. Next to the ferry is another ship, the Betty Lou Russell. The far shore of the river can be seen in the distance. Photographs from this series were published in the Oregon Journal on Sunday, April 30, 1950 (negative 31 of 42).

An overhead view of construction at the McNary Dam on the Columbia River. The river extends into the distance, while a dirt berm is being constructed at the center of the frame. At the bottom is a dam structure built of wood, rebar and cement. Photographs from this series were published in the Oregon Journal on Sunday, April 30, 1950 (negative 24 of 42).