Obstruction Point and the Grand Lake trail, Olympic National Park, date unknown

Chicago citation style
Obstruction Point and the Grand Lake trail, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1503. (Accessed April 26, 2018.)
APA citation style
Obstruction Point and the Grand Lake trail, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1503
MLA citation style
Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1503>.
Note: These citations are programmatically generated and may be incomplete.