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
Trinity and Brazos Valley Railroad Depot and Office Building NRHP nomination, "Its design and durability indicate the confidence with which the new company began its operations and the importance which the railroad company once placed on it s passenger business." The depot served passengers from 1907 until passenger service was discontinued in 1966. The railroad's offices moved away in 1968 and the depot was sold to the city of Teague in 1979. It became the Burlington and Rock Island Railroad museum in 1970. It is also a Texas State Antiquities Landmark. Trinity and Brazos Valley Railroad Depot and Office Building The Trinity and Brazos Valley Railroad Depot and Office