The bathymetry of Coeur d'Alene Lake, Idaho, is illustrated in this report. Water-depth contours were plotted using about 600 depth soundings obtained during the summers of 1989 and 1991. The contoured water depths were used to calculate lake morphometric values such as the volume of water stored in various depth layers. The morphometric values show that the lake has a surface area of 129 square kilometers and a volume of 2.90 cubic kilometers. The lake's maximum depth is 63.7 meters northwest of Driftwood Point. The mean depth is 21.7 meters.