Matching Items (2)
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- All Subjects: Grand Canyon National Park (Ariz.)
- Creators: Campbell, Ian
- Creators: R. P. Gilliland, R. P. Gilliland
- Resource Type: Text
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ContributorsR. P. Gilliland, R. P. Gilliland (Author)
Created1923-10-10
Description
Letter from R.P Gilliland to Carl Hayden regarding the sale of Bright Angel Trail (Ariz.) and construction of the President's Highway from Maine, AZ, to the Grand Canyon.
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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.