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- All Subjects: Grand Canyon Village Historic District (Grand Canyon, Ariz. : City)
- All Subjects: Cammerer, Arno Berthold, 1883-1941
- All Subjects: Automobile travel
- All Subjects: Homestead law
- Member of: 100 Years of Grand: The Grand Canyon Centennial Project
Travel statistics for Grand Canyon National Park.
Letter from Sanford Rowe and W. W. Bass to Carl Hayden requesting a re-examination on the proposed park boundaries as they are disadvantageous to current land owners surrounding the canyon.
Letter from W. W. Bass to Carl Hayden on the proposed park boundaries which he deems 'outrageous' and the effect such a bill could have on Hayden's reelection chances.
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.
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.
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.
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.
Letter from Arno B. Cammerer to Carl Hayden reiterating the safe nature of the dynamite storage.
Letter from Arno B. Cammerer to Carl Hayden informing him of the removal of the dynamite from Grand Canyon Village to a point near Rowe Well.
Letter from Arno B. Cammerer to Carl Hayden on the investigation by Superintendent Crosby regarding the TNT stored in the Grand Canyon.