Filtering by
- All Subjects: Goodman, Frank R., 1882-1968
- All Subjects: Mining
- All Subjects: Mather, Stephen Tyng, 1867-1931
- All Subjects: Gold, Frank M., 1878-1976
- All Subjects: Heard, Dwight Bancroft, 1869-1929
- Creators: Hayden, Carl T.
Letter from Carl Hayden to George Otis Smith asking his advice regarding the mining of asbestos deposits in the Grand Canyon.
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.
Letter from Carl Hayden to F. R. Goodman regarding the construction of new roads.
Letter from Carl Hayden to M. J. Riordan expressing his support for Coconino County in turning over the Bright Angel Trail to the federal government.
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.
Letter from Carl Hayden to F. M. Gold about the purchase of Bright Angel Trail.
Letter from Carl T. Hayden to F. R. Goodman concerning the purchase of Bright Angel Trail and construction of an approach road to the park.
Letter from Carl Hayden to Stephen Mather requesting that congress pay W. W. Bass the sum of twenty-five thousand dollars for his properties.
Letter from Carl Hayden to Stephen Mather regarding the sale of Bass properties to the Santa Fe Railroad Company.