Letter from Henry Graves to Carl T. Hayden regarding the land ownership and grazing rights of the Havasupai.

Letter from The Camp Fire Club of America urging Carl Hayden to introduce a bill that would grant National Park status to the Grand Canyon.

Letter from Governor George W. P. Hunt to Carl Hayden expressing his support for legislation that would grant National Park status to the Grand Canyon.

The Commission was created in 2003. Each report briefly outlines the activities of the past year and the projects for the coming year.

The objective of this Technical Data Notebook is to provide 100-yr peak discharges at Concentration Points for the Unnamed Wash 12, 100-yr floodplain boundary and erosion hazard information, using the most up-to-date topographic, hydrologic, and hydraulic data.

This Technical Data notebook has been prepared to study a portion of the Pegler Wash located in Pima County, Arizona. The objective of the TDN is provide regulatory discharge rates and floodplain limits along the Pegler Wash using better topographic, hydrologic, and hydraulic data.

These studies was performed to provide drainage, flood, and erosion hazard information for Hacienda del Sol Wash and an unnamed wash running along Hacienda del Sol Road. Topographic, hydrologic, and hydraulic analyses were performed to determine drainage conditions.

The purpose of this study is to provide uniformity in how building permits are processed and development is regulated within sheet flood areas in order to ensure that improvements are adequately protected from flood hazards.

The purpose of this study is to provide flood and erosion hazard information for Soldier Canyon Wash for use by the District in floodplain use permitting and and floodplain management.