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ContributorsZachau, Bernie (Author)
Created1917-02-17
Description

Letter from Bernie Zachau to Carl Hayden regarding water power in the Grand Canyon.

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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.