Matching Items (2)
Filtering by
- All Subjects: Grand Canyon National Park (Ariz.)
- All Subjects: Tourism
- Creators: Maxon, John H.
- Creators: McCarl, J. R.
- Resource Type: Text
![41094-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/prism/s3fs-public/2021-04/41094-Thumbnail%20Image.png?VersionId=cWXGAcdGu5XpsS.vQawBeJnpgvtP1.Hl)
ContributorsMcCarl, J. R. (Author)
Created1927-11-15
Description
Letter from J. R. McCarl to Secretary of the Interior on concessions and contracts in the park.
![41097-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/prism/s3fs-public/2021-04/41097-Thumbnail%20Image.png?VersionId=rvp2BGAQsLRjIkyyKPudRRB.t_ghxm5I)
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.