Obstruction Point and the road through the nearby valley, Olympic National Park, date unknown

Chicago citation style
Obstruction Point and the road through the nearby valley, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1200. (Accessed October 16, 2018.)
APA citation style
Obstruction Point and the road through the nearby valley, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1200
MLA citation style
Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1200>.
Note: These citations are programmatically generated and may be incomplete.