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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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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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Created2000-01
Description

Provides an overview of Pima County's (1) natural, constructed and administrative form makers, (2) the origins and implementation of planning and zoning legislation and regulations, and (3) a decade-by-decade review of some of the major land use decisions made within Pima County since the 1920s.