, rather than the entire data set. To produce the bathymetric surfaces for each backwater used in the study, the bathymetric survey data were combined with the water-edge data to produce a data set of points representing known elevation values in the backwater. This data set was then processed using the Geostatistical Analyst® extension to the ArcGIS software to produce a statistically estimated bathymetric surface. USGS DEM values were used to provide an estimate of the terrain surrounding the backwater and fill data gaps within the bathymetric surveys. The ordinary kriging method of analysis produced