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Tunnel de Ptarmigan (French Wikipedia)

Analysis of information sources in references of the Wikipedia article "Tunnel de Ptarmigan" in French language version.

refsWebsite
Global rank French rank
1nps.gov
135th place
428th place

nps.gov

hscl.cr.nps.gov

  • (en) « Ptarmigan Tunnel », List of Classified Structures, National Park Service,