Manuscripts
Indian writings at the head of Boulder Canyon on the Nevada side of Colorado River
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First camp on Colorado River at head of Boulder Canyon. Here drilling was done and sounding made before moving to Black Canyon where Dam is located
Manuscripts
mssMarston papers V102/0027

Herbert Hoover at left, Mrs. Herbert Hoover and Gov. Boyle of Nevada, at head of Boulder Canyon inspecting Dam Site
Manuscripts
mssMarston papers V102/0020



