Matching Items (3)
Filtering by

Clear all filters

41366-Thumbnail Image.png
ContributorsPollock, T. E. (Author)
Created1916-04-13
Description

Letter from T. E. Pollock to Carl Hayden expressing his dissatisfaction with the proposed boundaries in the national park bill.

41160-Thumbnail Image.png
ContributorsDickinson, Alf (Author)
Created1926-04-27
Description

Letter from Alf Dickenson to Carl T. Hayden about securing mining permits within the park.

42735-Thumbnail Image.png
Created2000-05
DescriptionDocuments the preparation of a geographic information system cover that represents springs in Pima County, discusses characteristics of certain springs in Pima County, and identifies actions needed to improve the conservation of springs and spring habitats.