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41249-Thumbnail Image.png
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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Created1976-11
Description

Feral burro management plan and environmental assessment for Grand Canyon National Park in Arizona.

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Created1977-09
DescriptionThis addendum to the 1977 GCNP managment plan includes priority projects and planning for a 5-year period.
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Created1957 to 1968