Then during the Laramide Orogeny, the uplift was rejuvenated and lifted again, flexing the overlying strata. The forested crest of the Defiance Plateau forms the western horizon for much of this trip, while the eroded upturned strata on the eastern flank provide interesting scenery before the impressive Chuska Mountains replace them. As you travel Navajo 12 you might want to tune your radio to KTNN, the 50,000 watt Navajo radio station at 660 on the AM dial for country-western and Native American music. The sandstone called Zuni in New Mexico is the same as that named Cow Springs in Arizona. Since the name Zuni has precedence, that is preferred, however, because a lot of guidebooks use the name Cow Springs, I am showing both.
Mileposts are on the southbound side.
Many are missing. There is a long gap that will be mentioned in the log below. ROAD LOG Drive north from the Window Rock stoplight where Navajo Route 12 turns north. Things get a bit confusing as you approach the older government buildings, but you can find it. The Todilto is absent around Window Rock, and the Entrada and Zuni are so intimately related that geologists cannot say where one ends and the other begins.