chaco culture national historic site with hungo pavi ruins and canyon walls in morning light, southwest desert, new mexico

america american anasazi ancient archaeology architecture building canyon ceremonial chaco chacoan clouds cultural culture cumulus desert environment excavation foundation great heritage historic historical history landscape masonry mexico national native outdoor outdoors park prehistoric pueblo puebloan puebloans remote remoteness rock rocks round ruins site sky southwest spiritual states structures travel una unesco usa vida wall walls west western world hungo pavi morning light entrance area usa