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Description

Amendments to the bill establishing the Grand Canyon a National Monument. Circa 1908.

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ContributorsBass, W. W. (Author)
Created1918-09-22
Description

Letter from W. W. Bass to Carl Hayden requesting the boundaries of the park be reconsidered as a large portion of the land is suitable for mining and farming.

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ContributorsHayden, Carl T. (Author)
Created1917-06-28
Description

Letter from Carl Hayden to W. W. Bass concerning the passing of the national park bill. Hayden states that he will try to make the bill as advantageous to Arizona miners and farmers as possible, but the land will either remain as a national monument or become a national park.

Letter from Carl Hayden to W. W. Bass concerning the passing of the national park bill. Hayden states that he will try to make the bill as advantageous to Arizona miners and farmers as possible, but the land will either remain as a national monument or become a national park. A postscript is added concerning the land allocated for the Havasupai Tribe.

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Created2013-11-25
Description

The objective of this Technical Data Notebook is to provide 100-yr peak discharges at a Concentration Point for the Unnamed 02 and 03 Washes, 100-yr floodplain boundary and erosion hazard information, using the most up-to-date topographic, hydrologic, and hydraulic data. This is a local study and has not been submitted

The objective of this Technical Data Notebook is to provide 100-yr peak discharges at a Concentration Point for the Unnamed 02 and 03 Washes, 100-yr floodplain boundary and erosion hazard information, using the most up-to-date topographic, hydrologic, and hydraulic data. This is a local study and has not been submitted to FEMA.

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Created2012-11-29
Description

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.

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Created2012-11-29
Description

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.

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Created1999-06
Description

This study was developed to identify the resources and applicable methodology for the delineation of primary flood corridors.

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Created2000-07-24
Description

Work maps for the Mission Wash floodplain. Highlighted photographs show the floodplain limits and watersheds.

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Created1999-11-30
Description

The purpose of the Phase I study is to evaluate existing drainage conditions and to identify alternative flood control/floodplain management strategies which warrant further consideration.

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Created1999-01
Description

This request for a Physical Map Revision is for a reach of Camino de Oeste Wash from Foret Road to Camino De Oeste Road. This PMR is to reflect improved topographical data available subsequent to the Flood Insurance Study of this area, and to establish base flood elevations for the

This request for a Physical Map Revision is for a reach of Camino de Oeste Wash from Foret Road to Camino De Oeste Road. This PMR is to reflect improved topographical data available subsequent to the Flood Insurance Study of this area, and to establish base flood elevations for the floodplain.