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A man sitting on a rock ledge views the Colorado River running downstream through Black Canyon prior to the construction of Hoover Dam. Bridges and catwalks are suspened over the river and dirt roads can been seen on both sides of the river...
1932-03-14
Construction workers using a drilling jumbo to excavate one of the diversion tunnels.
1932-03-08
Aerial view of the Colorado River in Black Canyon and the surrounding area.
1929-01-13
An aerial view of the Colorado River and Black Canyon during the early stages of Hoover Dam construction. The photo was taken from near the top of the dam site, on the Nevada site. It shows a building, roads, and temporary bridges spanning the...
2024-11-01
View of a substation used to power Hoover Dam construction activities. Also shown are buildings and roads winding up into the mountains.

An aerial view of the Colorado River winding through Black Canyon, showing future site of Hoover Dam. Shows mountains surrounding the canyon and in the distance.
1930-06-27
Aerial view of Black Canyon and the Colorado River, future site of Hoover Dam. Panoramic view of the mountains and surrounding countryside.

A group of people are peering over Lookout Point, watching the progress of the Hoover Dam construction. The dam construction is not visible.

View of the gravel plant, with cars and trucks parked in the foreground. Piles of screened aggregate and sand are seen in the foreground, and a storage pile for raw aggregate is seen in the background. The mountains are seen in the distance.
1932-03-02
Night view of the gravel plant, which is illuminated with electric lights. Piles of raw aggregate and a building stand in the foreground.
1932-02-26
Shows a man standing on the bank of the Colorado River, near Black Canyon. He is wearing a backpack and holding a rock and a rock hammer. There are mountains in the background.

Two men are constructing what appears to be a dock on the bank of the Colorado River in lower Black Canyon. There are mountains in the background.

View of the Colorado River, five miles below the Hoover Dam site, in Black Canyon.

Shows the Colorado River, 12 miles below Hoover Dam site. There are mountains in the background. This was taken at sunrise.

View of the Colorado River in Black Canyon, 7 miles below the Hoover Dam site.

A man carrying camping gear poses on the bank of the Colorado River in Black Canyon. This was taken 5 miles below the Hoover Dam site.

Two surveyors pose as they are working high above Black Canyon. The Colorado River is visible far below.

General view of Boulder City, Nevada, showing stores, Six Companies' dormitories, and other buildings. Several people and cars are in the picture. There appears to be snow on the ground.
1931-12-11
Shows the Colorado River 12 miles below the Hoover Dam site. There are mountains in the background of the photo.

Shows man perched on hill overlooking Boulder City, Nevada. Houses and other buildings are visible. There are power lines overhead.

Close up of an electric power shovel loading rock and debris into a dump truck. A driver sits in the truck.
1932-03-18
Close up of a construction worker sitting in a Mack truck which is being loaded with debris by a power shovel.
1932-03-18
View of a dump truck unloading debris during construction of a roadway. One construction worker sits behind the wheel of the truck and two others stand by observing from the road.
1932-03-16
Interior of a diversion tunnel, showing invert concrete pouring forms. Some construction workers can be seen in the foreground. The tunnel is illuminated by electric lights.
1932-03-18
A gantry crane is seen inside a diversion tunnel during construction of Hoover Dam. A flat bed truck is seen on the tunnel floor in the foreground and construction workers stand by. The tunnel is illuminated by electric lights.
1932-03-18
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