Organ Rock Formation Organ Rock Formation The Organ Rock Formation or Organ Rock Shale is a formation within the late Pennsylvanian to early Permian Cutler Group and is deposited across southeastern Utah, northwestern New Mexico, and northeastern Arizona. This formation notably outcrops around Canyonlands National Park, Natural Bridges National Monument, and Monument Valley. The age of the Organ Rock is constrained to the latter half of the Cisuralian Epoch by age dates from overlying and underlying formations. Important early terrestrial vertebrate fossils have been recovered from this formation in northern Arizona, southern Utah, and northern New Mexico. These include the iconic Permian terrestrial
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