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- All Subjects: Grand Canyon National Park (Ariz.)
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Letter from Ed Hamilton to Carl Hayden regarding the storage of dynamite in Shoski Canyon.
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Letter from A. E. Demaray to Carl Hayden regarding the storage of dynamite in Shoski Canyon.
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Letter from Arno B. Cammerer to Carl Hayden regarding the storage of dynamite in Shoski Canyon.
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Letter from R.P Gilliland to Carl Hayden regarding the sale of Bright Angel Trail (Ariz.) and construction of the President's Highway from Maine, AZ, to the Grand Canyon.
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Letter from Carl Hayden to R.P Gilliland regarding the sale of Bright Angel Trail (Ariz.) and construction of the President's Highway from Maine, AZ to the Grand Canyon.
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Press release comparing visitor attendance to the park by year. A 26 percent increase from 1923 to 1924 is noted.
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Press release on the increase in wildlife in the Grand Canyon including mountain sheep, deer, and the Abert Squirrel.
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