Caption
View over the deep gulleys exposed as the Colorado River and its tributaries cut their channels through layer after layer of rock .TravelTourismHolidayVacationExploreRecreationLeisureSightseeingTouristAttractionTourDestinationTripJourneyGrandCanyonCanyonsArizonaAZUnitedStatesOfAmericaAmericanUSAUSNorthBlueSkyForegroundInterestConservationAreaRockRockyFormationLandscapeAridDryDesertDesolateHotHeatNatureNaturalWildernessStateNationalParkGeographyGeographicalGeologyGeologicalScenicSceneryIsolatedSolitudeIsolationEnvironmentEnvironmentalMountainMountainousMountainsideTranquilTranquilityPeacefulErosionErodedWeatheringWeatheredSpectacularDeepWideValleyAdventureBeautifulPanoramaPanoramicPicturesqueViewVistaExpanseUNESCOWorldHeritageSiteAwesomeDesertMonumentVacation Ecology Entorno Environnement Green Issues North America United States of America