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Letter From George Otis Smith, U.S. Geological Survey to Carl Hayden

ContributorsSmith, George Otis (Author)
Created1918-05-01
Description

Letter from George Otis Smith to Carl Hayden regarding mining rights in the Grand Canyon.

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Letter From George Otis Smith, U.S. Geological Survey to Carl Hayden

ContributorsSmith, George Otis (Author)
Created1918-04-23
Description

Letter from George Otis Smith, U.S. Geological Survey to Carl Hayden regarding asbestos mining prospects in the Grand Canyon.

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Measuring Effectiveness of Open Space Land Acquisitions in Pima County, Arizona - Progress Report: Sonoran Desert Conservation Plan

ContributorsFonseca, Julia (Author) / Jones, Cory (Author) / Pima County (Ariz.). County Administrator's Office (Publisher)
Created2009-08-28
Description

This report examines how effectively Pima County’s natural open-space acquisitions have addressed priorities for conserving species’ habitats and landscape features identified in the Sonoran Desert Conservation Plan. The scope of this study is beyond the County's Multi-Species Conservation Plan, which is a subset of the overall Sonoran Desert Conservation Plan.