Bathymetric data were collected using a boat-mounted Wide Area Augmentation System (WAAS), a type of differential global positioning system, echo depth-sounding equipment, and computer software. Data were exported into a geographic information system and converted into a point layer. These data points were used to create a triangulated irregular network (TIN) from which 2-foot contours were created. The contours were then clipped with a manually digitized outline of the reservoir shoreline and edited for errors. The resulting data was used for mapping purposes and for calculating area and volume statistics.