Photograph of “Cannon Ball” Concretions informational sign
Subject(s): Concretions, National parks and reserves--Information resources, Signs and signboards
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Photograph of “Cannon Ball” Concretions wooden informational sign in the North Unit of Theodore Roosevelt National Park, which explains what concretions are.
Collection
Theodore Roosevelt National Park
Creation Date
1950-1970
Creator(s)
Period
Theodore Roosevelt and Public Memory (1919-present)
Repository
Theodore Roosevelt National Park
Page Count
1
Production Method
Record Type
Image
Resource Type
Rights
These images are presented through a cooperative effort between Theodore Roosevelt National Park – National Park Service and Dickinson State University. See the Theodore Roosevelt Digital Library Terms of Use for further copyright information.
Citation
Cite this Record
Chicago:
Photograph of “Cannon Ball” Concretions informational sign. [n.d.]. Theodore Roosevelt National Park.
https://www.theodorerooseveltcenter.org/digital-library/o277107. Theodore Roosevelt Digital Library. Dickinson State University.
MLA:
Unknown. Photograph of “Cannon Ball” Concretions informational sign. [n.d.]. Image.
Theodore Roosevelt National Park. Theodore Roosevelt Digital Library. Dickinson State University. March 12, 2026. https://www.theodorerooseveltcenter.org/digital-library/o277107.
APA:
Unknown., [n.d.]. Photograph of “Cannon Ball” Concretions informational sign.
Theodore Roosevelt National Park. Theodore Roosevelt Digital Library. Dickinson State University.
Retrieved from https://www.theodorerooseveltcenter.org/digital-library/o277107.
Cite this Collection
Chicago:
Theodore Roosevelt National Park. https://www.theodorerooseveltcenter.org/collection/theodore-roosevelt-national-park. Theodore Roosevelt Digital Library. Dickinson State University.
MLA:
Theodore Roosevelt National Park. Theodore Roosevelt Digital Library. Dickinson State University. March 12, 2026. https://www.theodorerooseveltcenter.org/collection/theodore-roosevelt-national-park.
APA:
Theodore Roosevelt National Park. Theodore Roosevelt Digital Library. Dickinson State University. Retrieved from https://www.theodorerooseveltcenter.org/collection/theodore-roosevelt-national-park.
