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Displaying results 140281 - 140290 of 830414

Slide of Hoover Dam's crest, circa late 1930s

Date

1935 to 1940

Archival Collection

Description

Black and white image of Hoover Dam's crest and intake towers, as seen from the Arizona side. Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Slide of Hoover Dam's upstream side, circa late 1930s

Date

1936 to 1940

Archival Collection

Description

Black and white image of Hoover Dam's crest and a sailboat on Lake Mead, as seen from the Nevada upstream side of the dam. Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Slide of the Hoover Dam spillway, circa mid 1930s-1940s

Date

1934 to 1949

Archival Collection

Description

Black and white image of a Hoover Dam spillway, as seen from the Arizona side of the dam. Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Slide of Hoover Dam power generators, circa mid 1930s-1940s

Date

1935 to 1949

Archival Collection

Description

Black and white image showing an interior view of the Hoover Dam powerhouse. Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Slide of Franklin D. Roosevelt, Harold Ickes, and Key Pittman at Hoover Dam September 30, 1935

Date

1935-09-30

Archival Collection

Description

Black and white image of President Roosevelt, his aide Harold Ickes, and Senator Key Pittman at Hoover Dam's dedication. Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Slide of a crowd at the Boulder Junction near Las Vegas, September 1930

Date

1930-09

Archival Collection

Description

Black and white image of a crowd of people gathered together for the Boulder Junction, a ceremony celebrating the beginning of work on Boulder Canyon Project and the beginning of construction on a Union Pacific Railroad from Boulder Junction (Bracken Junction) to the dam site. Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Slide of Boulder Canyon, circa early 1930s

Date

1930 to 1936

Archival Collection

Description

Black and white aerial view of the Colorado River in Black Canyon.

Image

Film transparency of the gravel testing laboratory, Las Vegas, September 1929

Date

1929-09

Description

Black and white image of the gravel testing laboratory at the site of the former Stewart Ranch, also known as the Las Vegas Ranch, after completed repairs to the building. Site Name: Las Vegas Ranch (Las Vegas, Nev.)

Image

Film transparency of the gravel testing laboratory, Las Vegas, September 20, 1929

Date

1929-09-20

Description

Black and white image showing an interior view of the gravel testing laboratory at the site of the former Stewart Ranch, also known as the Las Vegas Ranch. Site Name: Las Vegas Ranch (Las Vegas, Nev.)

Image

Film transparency of the gravel testing laboratory, Las Vegas, September 20, 1929

Date

1929-09-20

Description

Black and white image of the gravel testing laboratory at the site of the former Stewart Ranch, also known as the Las Vegas Ranch. Site Name: Las Vegas Ranch (Las Vegas, Nev.)

Image