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- All Subjects: Arizona
- All Subjects: Hayden, Carl Trumbull, 1877-1972
- Creators: Arizona Geological Survey
- Creators: Cammerer, Arno B.
- Creators: Yuma (Ariz.)
A policy document and guide for the growth and development of the city of Yuma in the next 10-20 years.
A report on Yuma's financial position and activity, including a complete set of independently audited financial statements.
A report of water quality tests performed in Yuma, to show compliance with state and Federal standards. Also discusses issues related to the supply of drinking water in Yuma.
Provides a statement of the city of Yuma's fiscal priorities and policies, and details of its expenditures and revenues.
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 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 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 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.