Matching Items (2)
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- All Subjects: Tourism
- Creators: American Journal of Science
- Creators: Hayden, Carl T.
- Resource Type: Text
ContributorsHayden, Carl T. (Author)
Created1924-03-11
DescriptionCarl Hayden speech to Congress on the sale of Bright Angel Trail.
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.