Filtering by
- All Subjects: Grand Canyon National Park (Ariz.)
- Creators: Cammerer, Arno B.
- Creators: Hamilton, Ed
- Creators: Gavin, J. E.
- Creators: Babbitt, Herbert
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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 Arno B. Cammerer to Carl Hayden regarding the storage of dynamite in Shoski Canyon.
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Letter from J. E. Gavin to Louis C. Cramton regarding the Bright Angel Trail controversy, including newspaper clipping.
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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 the Acting Director of the National Park to Carl Hayden assuring him that Superintendent Crosby had removed the dynamite nearby Grand Canyon Village and placed it in a safe location on the South Rim.
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Letter from J. E. Gavin to Jesse L. Boyce regarding the TNT storage in the Grand Canyon. Gavin states that although acting director Arno B. Cammerer is confident in Superintendent Crosby's report concerning the legitimacy of the storage, he will continue to investigate the matter to ensure public safety.
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Letter from J. E. Gavin on behalf of Carl Hayden writing in regards to the insurance claims filed with the National Park.
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Letter from Ed Hamilton to Carl Hayden requesting maintenance for the road between Grand Canyon Village and Rowe's Well.