Obstruction Peak, Olympic National Park, date unknown

Chicago citation style
Kirk, Ruth W.. Obstruction Peak, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/897. (Accessed September 24, 2018.)
APA citation style
Kirk, Ruth W., Obstruction Peak, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/897
MLA citation style
Kirk, Ruth W.. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/897>.
Note: These citations are programmatically generated and may be incomplete.