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Letter From J. R. McCarl to Secretary of the Interior

ContributorsMcCarl, J. R. (Author)
Created1927-11-15
Description

Letter from J. R. McCarl to Secretary of the Interior on concessions and contracts in the park.

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Bridge and Marble Canyon Dams [Proposed] and Their Relationship to Grand Canyon National Park and Monument

ContributorsU.S. Dept. of the Interior (Publisher)
Created1964-09-26
Description

A pamphlet on Bridge and Marble Canyon Dams and their relationship to Grand Canyon Natinal Park and Monument.