Filtering by
- All Subjects: Grand Canyon National Park (Ariz.)
- Creators: United States Geological Survey
- Creators: Albright, Horace M.
- Creators: Detroit Photographic Co.
- Creators: Standard Oil Company of California
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Letter from Horace M. Albright to Carl Hayden requesting a formal submission from Coconino County concerning the Bright Angel Trail.
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Letter from Field Assistant Horace M. Albright to Carl Hayden requesting letters to be drafted in regards to the grazing of sheep and cattle on national park lands. Bankhead and Henderson are singled out as not keeping to their permit restrictions.
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Color postcard titled, "6326 Grand Canyon of Arizona, From Jacob's Ladder."
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Geological examination of the park canyonland, with description of the rocks, water sculping process, volcanic cones and outflows, and land erosion. This edition is Volume 2, 1977 reprint, of the author's 1882 monograph. Includes 12 color maps, 10 color views and is number 280/1500.
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Bulletin describing a radio broadcast of a sightseeing plane trip over the Grand Canyon. Cover art by Maynard Dixon (1875-1946).