Mountains are sacred all over the world, but for the Navajo they're not just sacred, they form a kind of spiritual boundary around their culture. As long as the Dinetah stay within the four sacred mountains, everything will be alright.
That's a drastic over-simplification, but hey...I'm no expert on Navajo religion. But I do have Google Earth, so I mapped them out. Two of them happen to be in Colorado, Blanca Peak and Mount Hesperus.
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