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Displaying results 821441 - 821450 of 844555

Three hundred boxes of dynamite were used in spectacular blast which demolished the old Lookout Point. Photograph taken from the new Lookout Point, on Black Canyon Highway: photographic print, 1932 August 16

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

Archival Component

Blasting usually scheduled for 11:30 a.m., and billowing dust dislodged from canyon rim completely fills the canyon: photographic print, 1932 August 16

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

Archival Component

Blast on cableway bench excavation, on Arizona side, above dam site. Photograph taken from lower portal of Railroad tunnel Number 1: photographic print, 1932 August 24

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

Archival Component

Photograph of blast at same place shown above, taken from opposite, on Black Canyon Highway: photographic print, 1932 August 16

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

Archival Component

Huge billows of rock and dust pour over canyon rim and descend to river below: photographic print, 1932 August 24

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

Archival Component

Blast on Arizona intake tower excavation, which has filled canyon with smoke and dust. Upper steel suspension bridge shown in background: photographic print, 1932 August 16

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

Archival Component

Looking across reservoir area, which will be submerged when Hoover Dam is completed. Flat-topped hill in center of photograph will form a small island and ridge in foreground will be submerged: photographic print, 1932 August 15

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

Archival Component

Visitors to project are intrigued by the multiplicity of dish pans used as reflectors, which are scattered all over the project where night work takes place. This is the crew that installs them: photographic print, 1932 August 15

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

Archival Component

High scalers perched on bench 1000 feet above river prepare anchorages from which workmen will be suspended by ropes in scaling canyon walls for penstock tunnel adits: photographic print, 1932 August 22

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

Archival Component