Brazos Mountains to 55 million years ago during the Laramide orogeny. To the east and northeast lie the Sangre de Cristo Mountains which share a similar geological history. The Brazos Cliffs, which form a dramatic backdrop to Tierra Amarilla, are formed of Precambrian quartzite. Brazos Mountains The Brazos Mountains is a range in far northern Rio Arriba County, in northern New Mexico in the southwestern United States. A high crest runs from the border with Colorado for over in a south-southeasterly direction. The high point of the range at is on Grouse Mesa, at the Brazos Benchmark. Two miles (3 km) to
Flaming Cliffs refers to the red or orange color of the sandstone cliffs (especially at a sunset). The following are dinosaur fossils that have been found in the Flaming Cliffs. Theropods: Ornithischians Flaming Cliffs The Flaming Cliffs site, also known as Bayanzag, sometimes Bain-Dzak, ( "rich in saxaul"), with the alternative Mongolian name of ("red cliffs"), is a region of the Gobi Desert in the Ömnögovi Province of Mongolia, in which important fossil finds have been made. It was given this name by American paleontologist Roy Chapman Andrews, who visited in the 1920s. The area is most famous for yielding the first