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
March to the Brazos April Fool’s Day pranks, was becoming a little too regular occurrence for the Commandant. The next year the Commandant issued General Order No. 27 and began what became known as the “Hike to the Brazos” and eventually the “March to the Brazos.” The hike originated in 1909 and was held March 31 through April 1 to keep the cadets from playing April Fool’s jokes on each other and their instructors. This tradition was held annually until 1912 at which point it was discontinued. March to the Brazos was revived in 1977 when cadet leadership saw the natural tie between March