Lake Canyon, Glen Canyon, Utah. Hiking along a section of Lake Canyon at a location 20 feet below the high-water mark of Lake Powell. The upper reaches of the tributary canyons along Glen Canyon have emerged from the waters of the reservoir as a result of a 6-year drought which finally showed signs of relenting last year. At its lowest point, the reservoir dropped to a level 145 feet below its full-pool elevation in April of 2005. Two years of above-average snowpack have since raised the level of the reservoir about 60 feet. With increasing demands on the Colorado River, it will take many, many years of above-average snowfall to fill Lake Powell to its normal elevation of 3700 feet above sea level.