This natural wonder—a gigantic volcanic plug—remains sacred to the Navajo http://on.natgeo.com/2goSSf2 pic.twitter.com/8iQ6IskYYC

This natural wonder—a gigantic volcanic plug—remains sacred to the Navajo http://on.natgeo.com/2goSSf2  http://pic.twitter.com/8iQ6IskYYC

https://twitter.com/NatGeoTravel/status/921526449844228097