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ContributorsPotter, A. F. (Author)
Created1918-01-10
Description

Letter from A. F. Potter to Carl T. Hayden describing John H. Page's request to build a railway for the Canyon Copper Company as "impractical."

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DescriptionBlack and white, silver gelatin print with some silvering. Circa 1930.
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Created2009-07
Description

Testimony for The Subcommittee on National Parks, Forests and Public Lands of the Committee on Natural Resources presented against the withdrawal of the uranium-bearing lands around the Grand Canyon National Park.

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ContributorsValdez, Richard A. (Author) / Bio/West, inc (Publisher)
Created1995-09
DescriptionThe Final Report on life history and ecology of the Humpback Chub in the Colorado River, Grand Canyon, Arizona.
Created1920
Description

Colorado River Conservation Resolution, Los Angeles Chamber of Commerce, 1920.