Colorado River near Lees Ferry (IMAGE) Bureau of Reclamation Caption The Colorado River below Glen Canyon Dam before you arrive at Lees Ferry. A new study has found that the Colorado River experienced a severe drought impacting the upper Colorado River Basin in the second century. Credit Bureau of Reclamation/Alexander Stephens Usage Restrictions No restrictions. License Public Domain 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.