Manuscripts
Grand Canyon: Draft Environmental Statement, proposed Colorado River management plan
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Colorado River plans below Grand Canyon: miles 280-356
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
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Proposed Development Concept Plan, Grand Canyon Village
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
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Colorado River Research Program: Grand Canyon National Park
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
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Dams - Proposed - Grand Canyon
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
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Plan and Profile of Colorado River from Lees Ferry to Black Canyon, and Virgin River: reduced sheets A-J, O-S used in 1960 Grand Canyon transit
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
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Grand Canyon: Preliminary Wilderness Proposal
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers