Subscriber content previewBy DORANY PINEDA and JOHN LOCHERAssociated PressAP Photo/John Locher [enlarge] A formerly floating buoy now sits high and dry above Lake Powell at the Glen Canyon National Recreation Area. PAGE, Ariz. — Matt Barrett has seen Lake Powell drop nearly every year since 2013 or so, when he started making annual treks to the reservoir on the Utah-Arizona border. Some very snowy winters helped it rebound quickly, but this year was far from that.