The Restoration of Glen Canyon

As of January 2005, water levels at Lake Powell Reservoir are down below 37% of full, exposing forty miles of the Cataract Canyon, nearly a dozen new rapids, and hundreds of miles of side canyons all the way down to the dam. The recovery of these emerging canyons is occurring at an astonishing rate. Five years ago, significant skepticism was voiced regarding the Glen’s capacity for restoration and the legendary canyons were thought to be lost forever.

Recent evidence has shown this to be false. For example, the Lower Escalante near its confluence with Coyote Gulch, which was previously under water as recently as 1999, is now lined with 20-foot tall vegetation and exhibits little evidence of its recent submersion. Farther downstream, the evidence of submersion is more pronounced, yet disappearing quickly. Two miles downstream, 10-foot high vegetation (native and non-native alike) lines the sediment banks the Escalante River is steadily cutting through. Further downstream the river has cut down through twenty feet of sediment deposited just a few years previously.

The Escalante River where Lake Powell's
waters were last seen in 1999.


Photo by Christopher Peterson

The bathtub ring is disappearing throughout the canyon. The boater trash deposited throughout the canyon is barely visible in most places and the Park Service, as well as GCI, is working to cleanup the canyons in the coming years. Despite skepticism that the canyons wouldn't recover from thirty or more years under water, we have learned that restoration is already occurring. There is also evidence that the restoration will continue for quite some time.

The last time the reservoir was at its current elevation (1970), it took 17 years to fill up completely. Lake Mead was full at that time and overall demand for Colorado River water was significantly less than it is currently. Based upon demand projections, it is likely that Lake Powell will never fill again. Additionally, recent scientific studies predict global warming and climate change that will decrease the annual average flow of the Colorado River over the next few decades. (view .pdf of scientific study)

In the mean time, low river inflows continue to drop reservoir levels at Lake Powell. The restoration continues… Glen Canyon Institute is working to protect the revealed landscape and work to facilitate the continued restoration of Glen Canyon.
Reclaimed pool in the North
Fork of Willow Gulch

Photo by James Kay, 2004