Hubert Blonk Papers. SPC-006-0628-5-19-29
Black and white photograph
Scanned at 600 ppi TIFF format, resized to 72 ppi JPEG format.
Working with air drills to remove fractured rock from the dam site before pouring the foundation for 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