Grand Canyon (IMAGE) University of Colorado at Boulder Caption The Grand Canyon may be as old as the dinosaurs, according to a new study by the University of Colorado and the California Institute of Technology Credit Rebecca Flowers, CU-Boulder Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.