Historical references suggest that prairie-like plant communities were once scattered across parts of the Piedmont of the Carolinas. Prairie remnants are valued components of Southeastern landscape diversity, and interest in their restoration runs high. As a result of recent land use changes, prairie remnants are often overgrown and difficult to identify. A tool to assist with suitable site location would be valuable in Piedmont prairie restoration efforts. This study was conducted to determine what site and climate characteristics were common among known prairie remnants and might be useful for predicting suitable restoration sites. These characteristics will be used to develop a Geographic Information System procedure for selecting Piedmont prairie restoration sites. A literature review identified twelve prairie and rare plant sites in the Piedmont of North and South Carolina. Soil series, slope, aspect, landform index, temperature, and precipitation were determined for each location. Characteristics common among these sites were used to create raster data layers containing each characteristic. These raster data layers were combined using map algebra to develop a rating of Piedmont prairie site suitability throughout the North and South Carolina Piedmont. Piedmont prairie restoration was predicted to be potentially more successful on sites within seven soil series that have southern aspects with slopes generally less than 15%, and upper slope positions. Suitability analysis may successfully predict suitable site locations if the selection criterions are appropriate for the restoration area.