Federal flood control managers will release up to 41,500 cubic feet per second of water from the Glen Canyon Dam as part of a 60-hour "blowout," starting March 5, "to simulate springtime floods." Some National Park officials aren't sure it's a good idea.
The LA Times story.
The Park Service's "High-Flow Experiment" information page.
The USGS Grand Canyon Monitoring and Research Center.
The New York Times looks at questions raised.