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- All Subjects: Tourism
- Creators: Maxon, John H.
- Creators: United States Government Printing Office
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.
ContributorsUnited States Government Printing Office (Publisher)
Created1933
DescriptionHistorical overview of the Grand Canyon.