The principal objective of this investigation was to delineate the geometry of the subterranean discharge of fresh melt water from Vitus Lake (VL) at the terminus of the Bering Glacier into the Gulf of Alaska (GoA). It was hypothesized that during the seasons where the glacier was exhibiting melting, increases in VL elevation would push freshwater through the moraine toward the GoA. Because of the proximity to the GoA, intruded seawater would lie below the freshwater. The fresh and salt waters were delineated by measuring variations in apparent resistivity—as a proxy for salinity—with depth using two-dimensional electrical resistivity tomography at...