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Ecological Opportunities in the Lower Santa Cruz Valley of Avra Valley and the Santa Cruz Flats With a Focus on Reconnaissance of Pima County Flood Control District Properties: Sonoran Desert Conservation Plan

ContributorsRosen, Philip C. (Author) / Pima County (Ariz.). County Administrator's Office (Publisher)
Created2005-02-15
Description

Evaluates the conservation significance of county-owned properties in Avra Valley, specifically with regard to Priority Vulnerable Species and the Sonoran Desert Conservation Plan.

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Letter From Alf Dickinson to Carl Hayden

ContributorsDickinson, Alf (Author)
Created1926-04-27
Description

Letter from Alf Dickenson to Carl T. Hayden about securing mining permits within the park.

Translations of Statements Released by the Mexican Government Relative to the Water Treaty Between the United States and Mexico

ContributorsGomez, Marte R. (Contributor) / Padilla, Izequiel (Contributor) / Mexico, Ministries of Forign Relations and Agriculture (Creator) / Archives and Special Collections, Arizona State University Libraries (Host institution)
Created1945-04-20