Primary Sources

An Act to make Yellowstone a National Park. Ulysses S. Grant. 1872. 

 

“Away from the Cares of State – President Roosevelt Ready to Enter Yellowstone Park”. 1903. Photographic Print. Library of Congress. https://www.loc.gov/resource/cph.3f06231/

 

Muir, John. Petition to the House of Representatives. January 2, 1893. https://dp.la/primary-source-sets/environmental-preservation-in-the-progressive-era/sources/918

 

Muir, John. Our National Parks. 2009

 

Organic Act. August 25, 1916

 

Pierce, Charles. “Tunnel Through a Sequoia Tree.” Photographic Print. Digital Public Library of America. Yosemite National Park, 1899. 

https://dp.la/primary-source-sets/environmental-preservation-in-the-progressive-era/sources/923

 

Rosevelt , Theodor.  Letter to John Muir and William Colby. 1905. https://www.loc.gov/collections/theodore-roosevelt-papers/

 

“Theodore Rosevelt and John Muir at Glacier Point.” Photographic Print. March 14, 1903. Library of Congress. https://blogs.loc.gov/inside_adams/2016/08/roosevelt-muir-and-the-camping-trip/ 

 

Yellowstone National Park Rules and Regulations Department of the interior. Photographic Print. Washington, D. C. May, 4. Washington, 1881. https://www.loc.gov/rr/program/bib/ourdocs/yellowstone.html

Yosemite Act. Senate Bill 203. Public Act 159. June 30, 1864.

Secondary Sources

Butcher, Devereux. Exploring Our National Parks and Monuments: New York: Oxford University Press, 1947.

 

Runte, Alfred. National Parks: the American Experience. Lincoln: University of Nebraska Press, 1979.