Cascades at the head of Cunningham Gulch. Silverton Quadrangle. San Juan County, Colorado.

Chicago citation style
Department of the Interior. General Land Office. U.S. Geological and Geographic Survey of the Territories. (1874 - 6/30/1879). Cascades at the head of Cunningham Gulch. Silverton Quadrangle. San Juan County, Colorado.. 1875. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/517161. (Accessed November 17, 2018.)
APA citation style
Department of the Interior. General Land Office. U.S. Geological and Geographic Survey of the Territories. (1874 - 6/30/1879), (1875) Cascades at the head of Cunningham Gulch. Silverton Quadrangle. San Juan County, Colorado.. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/517161
MLA citation style
Department of the Interior. General Land Office. U.S. Geological and Geographic Survey of the Territories. (1874 - 6/30/1879). Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/517161>.
Note: These citations are programmatically generated and may be incomplete.