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ContributorsHayden, Carl T. (Author) / Smith, George Otih (Author)
Created1918-04-25
Description

Letter from Carl Hayden to George Otis Smith asking his advice regarding the mining of asbestos deposits in the Grand Canyon.

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Created1926-04-02
DescriptionGrand Canyon National Park General Regulations.
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ContributorsHayden, Carl T. (Author)
Created1926-06-12
Description

Letter from Carl T. Hayden to Alf Dickenson about mine locations within the park.

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ContributorsHayden, Carl T. (Author)
Created1924-08-06
Description

Letter from Carl T. Hayden to Louis C. Cramton about potential prosecution of people with mining claims within park boundaries.

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Created1940
DescriptionGuide Leaflet No. 3 detailing the west rim drive in the Grand Canyon.
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Created1933
DescriptionGuide Leaflet No. 1 detailing the desert view drive of the Grand Canyon.