Filtering by
- All Subjects: Mining
- All Subjects: Hunt, George Wylie Paul, 1859-1934
- All Subjects: McKee, Edwin Dinwiddie, 1906-1984
- Creators: Hayden, Carl T.
- Creators: United States Department of the Interior
Letter from Carl Hayden to George W. P. Hunt outlining the proposed national park boundaries and the cost of a township if the state of Arizona decided to acquire one on the rim of the Grand Canyon.
Letter from Carl Hayden to George Otis Smith asking his advice regarding the mining of asbestos deposits in the Grand Canyon.
Letter from Carl T. Hayden to Louis C. Cramton about potential prosecution of people with mining claims within park boundaries.
Letter from Carl T. Hayden to Alf Dickenson about mine locations within the park.
Typescript report, black and white, describing the mammals of Grand Canyon National Park with cover drawing of a bighorn sheep.
Typescript report, black and white, describing the birds of Grand Canyon National Park with cover drawing of a bald eagle.
Letter from Carl Hayden to Governor George W. P. Hunt asking the governor to submit the idea of a national park near the rim of the Grand Canyon to the state legislature during the special session. Hayden mentions the state of Arizona would be charged about $28,800 for the land at $1.25 an acre. W. W. Bass and Bass Camp are also included in the letter.