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
Calvert Cliffs State Park "Rickard's Cliffes," having given them his mother's family's name. Some 350 years later, the state park was developed with the General Assembly funding land purchases in each year from 1965 to 1968, then in 1969, dedicating money to the installation of the park's initial roads, parking area, and utilities. The Calvert Cliffs Nuclear Power Plant is located a short distance north of the park. The Dominion Cove Point liquid natural gas receiving station is visible off shore from the park beach. Calvert Cliffs State Park is mostly forested, with some wetland areas and a small pond for fishing. The park