Filtering by
- All Subjects: Grand Canyon National Park (Ariz.)
- Creators: Hayden, Carl T.
- Creators: Cammerer, Arno B.
- Creators: Albright, Horace M.
- Creators: Mathes, François E.
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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 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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Letter from Carl Hayden to Fred S. Breen regarding Yaki Point, the sale of Bright Angel Trail and the building of a road between Maine and the Grand Canyon.
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Letter from Carl Hayden to Arno B. Cammerer asking for the insurance claims of Roy James and M. J. Hanley to be investigated.
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Letter from Carl Hayden to A. E. Demaray on behalf of Roy James and M. J. Hanley asking if reimbursment could be granted without the need of special legislation.
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Letter from Arno B. Cammerer to Carl Hayden updating him in regards to the insurance claims by Roy James and M.J. Hanley.
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Letter from Arno B. Cammerer to Carl Hayden reiterating the safe nature of the dynamite storage.
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Letter from Arno B. Cammerer to Carl Hayden supporting Superintendent Crosby's stance that there is no need to remove the dynamite stored near Grand Canyon Village.
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Letter from Carl Hayden to Arno B. Cammerer on behalf of Jesse L. Boyce's complaint. Hayden states that Boyce believes Crosby's report to be inaccurate and an underestimation of the danger of the stored explosives.