NarratedbyAcademyAward?winnerRobertRedford,NationalParksAdventuretakesaudiencesontheultimateoff-trailadventureintothenation’sawe-inspiringgreatoutdoorsanduntamedwilderness.ImmersiveIMAX?3Dcinematographytakesviewerssoaringoverredrockcanyons,hurtlingupcraggymountainpeaksandintoother-worldlyrealmsfoundwithinAmerica’smostlegendaryo..ccc