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- All Subjects: Hayden, Carl Trumbull, 1877-1972
- All Subjects: Arizona
- Creators: Hayden, Carl T.
- Creators: Arizona Geological Survey
An update to the Flagstaff Regional Plan 2030 (FRP30), to bring its Road Network Illustration (Map 25) into compliance with Arizona Revised Statute requirements and to resolve inconsistencies between Map 25 and parts of the Flagstaff City Code. This update does not alter the intent of FRP30; it is only concerned with correcting errors, removing legal vulnerability, and improving the readability of FRP30.
Some of the richest helium-bearing gas in the world was produced in Arizona. Helium concentrations range from trace amounts up to ten percent in the Holbrook Basin and Four Corners. Both areas have good potential for additional discovery and production of helium. Includes metadata for the monthly, annual, and cumulative summary reports of oil, gas and helium production by Arizona drilling fields.
Letter from Carl Hayden to H. F. Robinson with attached notes from W. W. Bass and C. H. Gensler. Hayden solitices advice concerning the Havasupai Tribe needs for grazing and access to natural resources.
Letter from Carl Hayden to L. S. Williams informing the Saginaw and Manistee Lumber Company that a bill extending the timber cutting rights in the Canyon did not pass in Congress.
Letter from Carl Hayden to Harold Greene regarding the progress of the national park bill.
Letter from Carl Hayden to Bernie Zachau regarding the national park bill with an enclosed copy of the National Park Service Act.
Letter from Carl Hayden to Joseph J. Cotter regarding suggestions on the proposed national park bill.
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 L. B. Williams concerning the proposed township in the Grand Canyon.
Letter from Carl Hayden to George Otis Smith asking his advice regarding the mining of asbestos deposits in the Grand Canyon.