Hubert Blonk Papers. SPC-006-0628-5-9-1
Black and white photograph
Scanned at 600 ppi TIFF format, resized to 72 ppi JPEG format.
Crew working with air drills working their way to solid bedrock for the foundation of Grand Coulee Dam.
Archives & Special Collections, Eastern Washington University Libraries.
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Grand Coulee Dam (Wash.); Hydroelectric power plants -- Washington (State); Dams -- United States -- Design and construction