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
West Rock Ridge State Park West Rock Ridge State Park West Rock Ridge State Park is a public recreation area located in New Haven, Hamden, and Woodbridge, Connecticut. The state park is named for the trap rock West Rock Ridge, which is part of the Metacomet Ridge extending from Long Island Sound to the Vermont border. The park's of open west-facing cliffs offer vistas encompassing Metropolitan New Haven and suburban towns to the west. The park includes Judges Cave, a colonial era historic site; Lake Wintergreen; and the Regicides Trail, part of the Connecticut Forest and Park Association's Blue Trail system. The park is part