Matching Items (2)
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- All Subjects: Grand Canyon National Park (Ariz.)
- Creators: Babbitt, Herbert
- Creators: Maxon, John H.
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ContributorsMaxon, John H. (Author) / Campbell, Ian (Author) / American Journal of Science (Publisher)
Created1934-10-01
DescriptionExcerpt on the Archean Ripple Mark in the Grand Canyon.
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ContributorsBabbitt, Herbert (Author)
Created1925-12-02
Description
Letter from Herbert Babbitt to Carl T. Hayden about grazing cattle in the park boundaries.