SALT LAKE CITY, Feb. 10 (UPI) -- Manmade floods from an Arizona dam can rebuild critical Grand Canyon sandbars if timed properly, but could kill endangered fish if they're not, a report says.
The U.S. Geological Survey report said the latest of three intentional floods from the Glen Canyon Dam, unleashed in March 2008, created lasting Colorado River sandbars to benefit fish, wildlife and river-running campers, The Salt Lake Tribune reported Thursday.