A National Guard UH-60 Black Hawk Helicopter lowers a sandbag onto a fairway at the Dakota Dunes Country Club June 2. The sandbags, which weigh between 2,000 and 4,000 pounds, are being used to construct levees designed to keep flood waters at bay along the Missouri River. The rising waters are threatening the homes of residents in the South Dakota community. More than 1,000 soldiers and airmen from the South Dakota National Guard are now supporting flooding efforts along the Missouri River throughout South Dakota.