Sediment cores drawn from four lakes in Guatemala record the distinct direction that ground shaking traveled during a 1976 ...

PITTSBURGH—By now, the U.S. Army Corps of Engineers has a good idea of the issue facing Chautauqua Lake. Now, everyone’s ...

Rock flour settled through the murky water and deposited as a layer of pale sediment on the floor of the lake. Those pale summer layers varied in thickness from a fraction of an inch to as much as ...

Down the road from Chimney Rock, Lake Lure, is also seeing a lot of heavy machinery. Army Corps crews are removing thousands ...