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
Zuytdorp Cliffs cliffs in 1712. The Zuytdorp Cliffs are composed of Pleistocene aged limestone, a formation called the Tamala Limestone. This limestone formed by the cementation of ancient calcareous sand dunes that accumulated near the coast during episodes of the last ice age. It has been inferred that the relatively straight edge of the cliffs is due to a major fault line just off shore. Zuytdorp Cliffs The Zuytdorp Cliffs extend for about 150 km along a rugged, spectacular and little visited segment of the Western Australian Indian Ocean coast. The cliffs extend from just south of the mouth of the Murchison