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ContributorsCrosby, W. W. (Author)
Created1923-08-21
Description

Letter from W. W. Crosby to the Director of the National Park Service defending his placement of the dynamite near Grand Canyon Village. He states there is between 16-20 tons of dynamite.

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ContributorsMoran, P. J. (Author)
Created1925-04-08
Description

Letter from P. J. Moran to Carl T. Hayden inquiring when construction will begin on the approach road to Bright Angel Trail.

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Created1917
DescriptionColor map of the Grand Canyon National Park proposed boundaries with animal habitat zones identified for deer, mountain lion and mountain sheep.
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ContributorsMoran, P. J. (Author)
Created1926-03-24
Description

Letter from P. J. Moran to Carl T. Hayden inquiring when construction will begin on the approach road to Bright Angel Trail.

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Created1976
DescriptionDepartment of the Interior draft environmental statement of the proposed wilderness classification for Grand Canyon National Park.