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
Trödelsteine (rock formation) Trödelsteine (rock formation) The Trödelsteine, also called the Trödelstein, is a rock formation near Emmerzhausen in the county of Altenkirchen in the German state of Rhineland-Palatinate. It consists of columnar basalt and a basaltic blockfield in the Heller Upland. The rock formation has been designated as a natural monument, about 0.3 hectares in area. The Trödelsteine lies about 1.2 kilometres northeast of Emmerzhausen, 3.6 km southwest of Burbach and 2.6 km northwest of Lippe, which are both in the neighbouring county of Siegen-Wittgenstein in North Rhine-Westphalia. The rocks extend up to the summit of the mountain on which they are