Letter from Stephen T. Mather to Carl Hayden with markup of bill S 390 for the proposed National Park.

Letter from Stephen T. Mather to Carl Hayden regarding amendments to the national park bill including Mather's approval of the Secretary of the Interior granting railroads rights of way.

Letter from Stephen Mather to Carl T. Hayden regarding automobile regulations within Grand Canyon National Park.

Letter from Stephen T. Mather to Carl T. Hayden advocating for a reduction in automobile fees for the South Rim entrance.

Letter from Stephen T. Mather to Carl T. Hayden regarding a negative newspaper article about the National Park Service and Stephen Mather.

Letter from Stephen T. Mather to Carl T. Hayden thanking Hayden for his advice about visiting Arizona.

We still have plenty of opportunities to influence the community form. Plans discussed initially involve biological impacts. Conservation planning from Metro Tucson is changing and it is changing the traditional type of development of subdivision s into commercial/shopping center areas since the end of World War II.

Provides an overview of Pima County's (1) natural, constructed and administrative form makers, (2) the origins and implementation of planning and zoning legislation and regulations, and (3) a decade-by-decade review of some of the major land use decisions made within Pima County since the 1920s.

Letter from Carl Hayden to Stephen Mather regarding the sale of Bass properties.

Letter from Carl Hayden to Stephen Mather requesting that congress pay W. W. Bass the sum of twenty-five thousand dollars for his properties.