Matching Items (4)
Filtering by
- All Subjects: Dickinson, Alfred E., 1870-1940
- All Subjects: Heard, Dwight Bancroft, 1869-1929
- All Subjects: Riordan, Michael James, 1865-1930
- All Subjects: Smith, George Otis, 1871-1944
- Creators: Hayden, Carl T.
ContributorsHayden, Carl T. (Author) / Smith, George Otih (Author)
Created1918-04-25
Description
Letter from Carl Hayden to George Otis Smith asking his advice regarding the mining of asbestos deposits in the Grand Canyon.
ContributorsHayden, Carl T. (Author)
Created1924-03-25
Description
Letter of introduction for Dwight B. Heard on the arrival of National Park Service Director Stephen T. Mather to Phoenix. Mather's visit includes trips to Roosevelt Dam and Tumacácori.
ContributorsHayden, Carl T. (Author)
Created1924-03-13
Description
Letter from Carl T. Hayden to Michael J. Riordan explaining the benefits of selling Bright Angel Trail and building an approach road.
ContributorsHayden, Carl T. (Author)
Created1926-06-12
Description
Letter from Carl T. Hayden to Alf Dickenson about mine locations within the park.