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
Brazos County, Texas Houston. Brazos County is a Republican stronghold, with no Democrat carrying the county since Texas native Lyndon Johnson in his 1964 landslide. Brazos County, Texas Brazos County ( ) is a county located in the U.S. state of Texas. As of the 2010 census, its population was 194,851. The county seat is Bryan. Along with Brazoria County, the county is named for the Brazos River, which forms its western border. The county was formed in 1841 and organized in 1843. Brazos County is part of the Bryan-College Station, Texas Metropolitan Statistical Area, which consists of Bryan, College Station, and smaller