Matching Items (2)
Filtering by
- All Subjects: Grand Canyon National Park (Ariz.)
- Creators: Edwards, John H.
- Creators: Maxon, John H.
ContributorsEdwards, John H. (Author) / United States Department of the Interior (Publisher)
Created1926-04-02
DescriptionGrand Canyon National Park General Regulations.
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.